The fuel sending unit should have a pink wire with voltage on the isolated center post. To activate the fuel pump the computer actually connects one of the ground wires to complete the circuit and send power to the fuel pump. Fiat 500 Giannini Air Filter Cover Fiat 500 N/D Fuel Pump Type Weber Repair Kit. if this has 2 fuel tanks, the connection at the switching valve needs to be checked. Thread starter bigneily; Start date Aug 2, 2009; bigneily Joined Nov 19, 2007 Messages 292 Location cranbrook , bc canada. Open in wiring anywhere in fuel pump wiring circuit (power or ground). thanks #85 and #86 are the relay coil. Ran a wire directly to fuse and pump turned on. Start new topic. Includes fittings and mounting hardware along with easy to follow DIY instructions. Fuel pump relay terminal No. Cut the first pair of wires 2 inches (50 mm) away from the taped electrical connectors (4) and stagger each of the cuts 1. Connect a fused jumper wire between terminals indicated by arrows. DIY: 1998 Volvo V70 Fuel System Troubleshooting Tips * No-start is a very frustrating problem for car owners, so download these diagrams (and a jumper wire) and keep them in your glove box. 2000 s10 fuel pump gray lead wire not working. was the fuel pump assembly a complete unit with the float assembly?? some of them you have to change over the sender unit. If it doesn't, you have a bad ground. Fuel Pump Relay Diagnostic/Troubleshooting Notes: The YEL wire:. Pump inlet&out Size: 1" 2. Service includes a detailed report showing voltage, current and pressures for the selected test range. If it has a ground wire, just attach that ground wire to the base where it's mounted with a proper sized terminal lug. Venture - Ground Wire Locations - Ok, so the other day I decided to add an extra ground wire to my van because it was misfiring on 2 and 4. on any car, if the relay is working, the fuse has to be good. The lower you let your fuel level get the less cooling of the pump. These captures show the pump speed increasing as the current drops so it isn't a ground or power supply. Another event Fuel pump is bucking. The red wire ultimately powers the fuel pump & injectors, and the black wire is ground for the ignition. Posted October 5, 2008. This typical circuit diagram of the fuel pump circuit applies to the gasoline 1993, 1994, and 1995 Ford F150, F250, and F350 equipped with a gasoline 4. Ground at tank has been checked and ruled out. The pink wire should be the fuel pump wire, the tan/white wire is for the sending unit, ground the test light to a good clean section of the frame (grind it shiney to be sure you have a good ground so you get an accurate test). 62 track 18 shows pump ground wire location. In the 1989/90, the fuel pump relay is inside the main relay, not separate. I can not find all the details at this moment but the following should help - the DME does control the fuel pump. tested fuse good 2. Fuses are good. CAUTION: Make sure that the splice is crimped in the correct location. - Your fuel pump uses the recirculating fuel to cool the pump. Fuel Pump is good. Connect the pump ground wire (-) to a suitable ground. The hot wire should be a 12vdc source that is only hot when the ign. Hope someone can help. There is also a smaller ground wire for the body that connects either to the ground post on the battery or the engine block. The orange and purple wires are your fuel gauge wires. Fiat 500 N/D Fuel Pump Type BCD Corona Repair Kit. The fuel pump circuit is somewhat involved, the EVTM I described has the diagram for it. The last step was to wire the ground connection for the fuel. The problem is that I'm getting only 6 volts to the solenoid on the fuel pump relay. I checked the power at the pump. He then replaced the new fuel pump 3 times pulled the gas tank twice and still cant fix it. dropped tank have positive for 3 seconds 4. No noise coming from the fuel pump when the key is turned, nor can I hear any click from the fuel pump relay located between the washer pump and master cylinder on the firewall. I have a 1992 Chevy S10 pick up and the fuel pump on my. When I was done, without putting the bed back on, I tried to start the truck. I am finishing up a complete rewire of my 28 PU with a harness kit. Only get power and continuity to top right post of both system and start relays. 99 Fuel pump electrical issue - posted in Spec Miata Garage: Im trying to debug an issue with my 99 where the fuel pump runs continuously, when the key is in the acc position w/o a jumper in the diagnostics box. Fiat 500 Giannini Air Filter Cover Fiat 500 N/D Fuel Pump Type Weber Repair Kit. Ground the final wire from the relay (I think it's terminal 86) to the fire wall. Fixing Startup Problems with JD 5220, 5320, 5420, 5520 Run a ground wire to a suitable location on the tractor. If the relay has a 5th terminal, it is not used. Page 33 ELECTRICAL WIRING ROUTING : Location of Connector Joining Wire Harness and Wire Harness : Location of Ground Points W-R B-Y (M/T) B-O STARTER RELAY CIRCUIT OPENING RELAY W-B L-B B-O INJECTOR W-B L-B FUEL PUMP. I put another fuel pump in and nothing. I am using a submersible water pump whose plug has only 2 prongs. txt) or read online for free. With no ground the pump does not run, ground the wire then the pump runs. With the last power wire going to the second set of contact screw heads and the last pump wire going to the last screw head terminal. the pump in the tank and if its. Soeither somehow both my main relays went bad at the same time, or, more likely, there is an issue farther up the lineeither ECU (AEM) or connection. location of the splice in the wiring harness. The bottom of the pump is secured to the bottom of the tank by a bayonet style mount. Gauge reads about 2 PSI initially which is normal. If you are blowing fuses I would be checking the power wire from the f-p relay back to the pump for damage causing a short. on any car, if the relay is working, the fuse has to be good. Ford has lots of problems with the sender reliability. I tested the wires at the ignition switch connector and all have the proper continuity and voltage. The black/white-pink wiring goes to the ECU (at least on my car). If you are having trouble firing up your engine or you suddenly experience strange idling while on the road, it could be that your fuel pump is on its last legs. next, check for fuel pump signal at the fuel system control module. Get to the wire harness connection to the fuel pump on the frame and check for 12V when the ignition key is turned to the run position. Connect a fused jumper wire between terminals indicated by arrows. As I said before, I suspect that the ECU is performing a safety function such that the pump is not running. Was told that this was a common problem with S-10's and Silverados of that era, but the Chevy mechanic said he never saw it on a Vette before. AutoZone Repair Guide for your Wiring Diagrams Connector Ground Locations (2002) Connector Ground Locations (2002) 1. location of fuel pump 1997 cadillac deville the filler tube the rest will lover to the ground with the tank. Imagine how terrible it would be if you were pumping gas in your company truck or car and the gas dispensing station erupted into a ball of fire. Lastly, connect a lead from the normally closed starting system to the (S) terminal of the oil switch. I just repaired the fuel pump wires on my '88. Start the engine. 5 Volts (and pressure at Shrader had been about 20psi). By Mike Holt, for EC&M Magazine. pink and black wire, 30-amp weather resistant relay and. At the C103 connector underhood (coming from Fuel pump relay, the gray wire), it is showing full 12+ Volts. Have ground to fuel pump fuse but no power. The red wire does show as ground when I switch on the ignition for a few seconds, so that is fine. I do have a manual and have looked at the engine control schematic here in the forums. That 12V red wire can be connected to a good power distribution/junction block location. I want to use it to supply a garden hose which involves putting the pump in a bucket full of water. I changed the fuel pump on my 1996 GMC Sierra earlier in the year. Lastly, connect a lead from the normally closed starting system to the (S) terminal of the oil switch. Connect a ground to terminal 1 and battery voltage terminal 2. one has an earth wire Lower it a little and disconnect the wiring plug to the pump and the three fuel/return/vapour lines with the special disconnect tool. Disconnect the fuel lines from the fuel pump. To reduce risk of contaminating the replacement pump, Delphi recommends cleaning the fuel tank before installing a new pump. - For much more detail on how the fuel system functions in our cars go to the following link. The ASD relay is located in the Integrated Power Module (IPM), in the engine compartment. The ecu grounds out the fuel pump relay and sends power to the b/y wire. The pink wire should be the fuel pump wire, the tan/white wire is for the sending unit, ground the test light to a good clean section of the frame (grind it shiney to be sure you have a good ground so you get an accurate test). I would like to find a wiring diagram for the fuel system as I do have one plug that does not go anywhere, after the flip. Fuel gauge and fuel pump share a common 'ground/earth' on the black wire in the X10 connector. Location : Passenger Side Notes : Fuel pump (In tank) Right; Includes Venturi pipes Condition : New Quantity Sold : Sold individually Recommended Use : OE Replacement Operation : Electric Fuel Sending Unit Included : Without Fuel Sending Unit Pressure Sensor Included : Without Pressure Sensor Product Fit : Direct Fit Prong Connector : 1 electrical connector; 2-prong blade connector Replaces OE. By beeto24, October 5, 2008 in 1999-2013 Silverado & Sierra 1500. Fiat 500 N/D Fuel Pump Type BCD Corona Repair Kit. Zip tie wire harness and hoses in place as needed. Grounds are important to any electrical system, and especially to computer controlled engines. Without looking it up, I'll suggest the PCM circuit is commanding the fuel pump relay to operate. If you're not getting a signal for fuel, then you either have a faulty crank sensor, or bad ignition module. Where is the ground wire located on a 99 Chevy Malibu for a fuel pump? Wiki User 2014-03-18 07:03:37. Fiat 500 D Fuel Tank Sending Unit. From now on whenever you start the car, pause in the run position before cranking it over. recommends grounding your pump prior to use. I accidentally disconnected it when putting the tank back in it has a connector on the end of it but I have no idea where the. 87 to fuel pump relay terminal No. yes, thru the case. Is this necessary? Is the black wire, I'm assuming it's the ground, grounded at the other end of the pigtail?. Fuel Pump Testing can tell you exactly how your pump is performing. The ground wire of the coil. I realy need help with the color and purpose of each wire. Other electrical problems that can affect the pump include low voltage in the pump's power supply circuit or high resistance in the pump's ground connection. There is a lot of confusion and misunderstandings about them. The feed from the gauge is grounded through the variable resistor in the tank which causes the gauge needle to move. Connect the pump power wire (+) to a power supply that is controlled by the ignition switch. Pulled the relays (both the fuel pump relay and ECM relay). Ground the sending unit wire to a known good ground using a jumper wire. Should have 10 to 12 Volts DC with Key On Engine Off (KOEO) or Key On Engine Running (KOER). The winch red, hot, wire needs to be connected directly to the positive battery terminal. Although it's not absolutely necessary, you should connect a fuel pressure gauge to the. Blown fuel pump relay (Relay is energized by (PCM) to route power to fuel pump when ignition is on). Next, I unplugged the fuel pump to make sure that the fuel pump was getting power. If both of these locations test good with the key in the run position, then you have a failed fuel tank pressure sensor. the reason why when you ground the white wire directly to the frame that the pump runs full blast is that you are bypasisng the 'step down' circuitry of the FPCU grounding path. Here's what I don't know: 1. In the 1989/90, the fuel pump relay is inside the main relay, not separate. I am on my second new fuel pump it ran for 2 weeks then crapped out on me. Use the jumper wires connected to the battery to test for voltage. recommends grounding your pump prior to use. With the required length of hose connect the pump inlet and outlet to the fuel line and secure with hose clamps. I just cleaned the fuel tank, rebuilt fuel pump, installed new sending unit and I get no readings with the stock gauge. Fuel gauge and fuel pump share a common 'ground/earth' on the black wire in the X10 connector. You can test the fuel pump by hooking it up to a 12v source, just try not to make any sparks. I called a professional thinking that I'd screwed something up. The relay assures proper voltage to the fuel pump at all times, for consistent and accurate fuel pressure. Had that vehicle been losing power or ground, the current flowing and the pump speed both would have dropped. This can be done with the temperature sensor in the engine block, a manual operated toggle switch, or both. After the fuel pump does its 2-5 second prime and shuts off,the ecm looks for the signal from the pip sensor (inside the distributer) to verify the engine is cranking then the ecm turns the fuel pump relay ground (pin 22) back on to energize the fuel pump again. dropped tank have positive for 3 seconds 4. make sure the attachment point has been taken to bare metal using a grinder or stiff welding brush. This will activate your fuel pump. Unhook the ground and gauge should go back, do it several times to make sure gauge is not binding up inside the dash, it could just be a mechanical issue with the needle, not an electrical issue. grounds are at the firewall. Fuel Pump Testing can tell you exactly how your pump is performing. Jump to i did the fuel pump replacement by taking the bed off and i hooked up the ground wire that runs from the fuel pump to the d/s rear of frame,the funny thing is a couple times i went out in the morning to try my luck at it again, and it would start from sitting overnight, but just run for. There are 4 wires leading to the fuel pump on your truck. This Single Family House is 3-bed, 2-bath, 1,000-Sqft ($299/Sqft), listed at $298,700. There's a ground strap that attaches to the frame and a ground wire that goes to the filler neck. Finally, reconnect the negative battery cable to be able to start your engine and see if putting in your replacement tank did the trick in fixing your car. jack up the back of the car and figure out what wires are for the fuel pump. (Note* - if one owns a W211 E55 AMG, this is not the fuel pump relay, it is the heat exchanger cooling pump relay. Submersible pump wire is a multiconductor cable that connects a submersible pump controller to the motor of the pump, which is often located in a deep well. Also known as sub pump wire, it's protected by durable, plastic insulation that resists oil, lubricants, acids, ozone, and abrasion, making it ideal for wet or hostile environments. I might try tying it to the BY wire that is the ground of the temp sensor. This will act like a single switch. I cut through my truck bed right above the fuel pump so I would have easier access to it. They also have mounting points near the rear differential for the fuel pumps as well. This will verify your wire from the fuse box to the fuel pump connector. ENGINE DATA SENSORS. 2000 s10 fuel pump gray lead wire not working. checked fuses and swithed out the relay. He then replaced the new fuel pump 3 times pulled the gas tank twice and still cant fix it. ELECTRONIC TRANS 2. Specifications 1. Find a suitable ground wire location and connect it to terminal 86 of the relay. Find a convenient nut to remove, cut the ground wire to a suitable length, crimp on a ring terminal, and secure it to ground. abs wheel speed sensors are all connected to the ABS controller. After I put on the extra ground wire and drove home, I noticed that it didn't chug as much, so I'm wondering, where are the ground wires located so I can replace them, ALL of them. 18/ft: 8/3C w/ Ground Flat Yellow Submersible Pump Cable » $1. when i turn the ignition on no fuel pump heard already did these things 1. I have an issue with my fuel pump I keep losing ground truck won't start I remove the bed pull the ground wire off cleaned it stuck it back on with a good ground fuel pump started working again I. Add to Cart. Two separate circuits. please advise. Splice #12 wire to the red wire coming off the pump by twisting the bare wires together and. ) Also, note that the ground wire is one size larger than the others since it carries the return current from multiple things. Connect the Green/Black wire to a switched 12V source. Universal Electric Fuel Pump Installation Instructions source controlled by the ignition switch (described in step 1 of this section). When I purchased the car the PO had installed a jumper switch instead of the the Fuel pump relay and you needed to switch it on to drive the car. After being parked for two days, the vehicle suddenly caught fire. next, check for fuel pump signal at the fuel system control module. Two wire: Must be battery or vehicle grounded by customer and includes internal ground (Suitable for gasoline) C. There is a seperate wire connected to the sender base (black) that is to be used as a ground. that is the power wire that runs your fuel pump except for priming. Go under the car now and carefully run the wire along the other wires and cables with zip-ties. If there is no ground at the connector, check for a bad ground wire or a bad grounding point. There's no fuel in line and no amount of squeezing the bulb will produce anything but air out of the fuel filter bleeder valve. These are the BLUE & RED PCM connector pinouts that will cover 1999-2002 F-Body ONLY. Contact us for free. If the 2 grounds on the intake manifold are damaged (the 2 that bolt to the intake manifold with a 10 mm bolt) then the ecu will have issues working properly (ie, grounding the fuel pump relay). The wiring diagrams are grouped into individual sections. If you can not find a ground wire loose or broken you and always run new ground wires and it will save a lot of time and headaches. I have not had a single problem with the fuel pump since. The fuel pump is brand new and also the Fuel Pump Drive Module is brand new and the car starts if you put starter fluid which means it is a fuel pump problem. kudran, yes it can. 1680 West Winton Ave Ste 3, Hayward, Ca 94545. There are cores needed …. The fuel pump circuit is somewhat involved, the EVTM I described has the diagram for it. Question: Can you measure battery (B+) voltage at the relay socket #30 pin? (RD-WT) wire? Just pull out the relay and check. Here is a car that has a good pump but the fuel pressure is dropping because of a restricted tank sock. First thing I would check is power and ground to the fuel pump. I am assuming that this might be the lead that powers the fuel pump. Because as long as the fuel pump has power (aka, the ignition switch is in the "on" position), it will happily keep pumping fuel - even if a fuel line ruptures. Fuel pump connector wiring is. Fuel Pro Standard and Plus, 3950729 S for EXT) on WIF Probe. So I guess you would need to use the pip wire at the tfi module to see the crank. i am a non-wiring person, i have a bosch relay # 0 332 209 150-896. It saves on electricity and fuel pumps. 2 liter 4x2 standard cab? i got a new one but for some reason cant find where the damn thing goes! I left my chiltons somewhere and i cant find it. click on a figure module-fuel pump lt. Standard resistance. Connect the ground wire from the fuel pump to ground as shown in the illustration below. If you remove the left rear tail light you should see a connector there with a pink/black wire that goes to the fuel pump. If it doesn't, you have a bad ground. most fuel pump the ground is directly on the frame that holds. 00 and should have been replaced when the fuel pump was replaced. and one 18 ga. Should have 10 to 12 Volts DC with Key On Engine Off (KOEO) or Key On Engine Running (KOER). By beeto24, October 5, 2008 in 1999-2013 Silverado & Sierra 1500. See all 41 photos Coming off of the fuel computer harness are these three wires, which connect to the fuel pump. It looks like the green wire from the FAST EZ-EFI labelled "fuel pump relay" is a safety device that switches off the ground if the engine isn't running. Here's what I don't know: 1. This information outlines the wires location, color and polarity to help you identify the proper connection spots in the vehicle. Wire a high-dollar electric pump incorrectly, and the pump's performance will suffer due to insufficient voltage. I could also see the gauge move a bit while driving. Go under the car now and carefully run the wire along the other wires and cables with zip-ties. If you have power on 88d and the pump still doesn't run, check for continuity between the pump's power connection and 88d, and check that the pump has a good ground connection. The ecu grounds out the fuel pump relay and sends power to the b/y wire. The tools and supplies needed include 1/8" and 1/4" flat-blade screwdrivers, wire cutter and crimping tool, 12-mm socket and socket wrench with a 3" extension, electrical tape, about 3" of 16 or 18 gauge insulated. Unplug the fuel pump connector by the tank and check for power with a test light while someone turns the key to on. orange {might be pink} with silver dots (small wire) Pin 3. Chances are any solid metal part under dash will provide a good ground. Plug the electrical connector back in. Get Yours Today! We have the best products at the right price. i am a non-wiring person, i have a bosch relay # 0 332 209 150-896. I'm not entirely sure about this, but after looking at the schematics for that circuit, looks like it should work. Turn on the ignition switch and allow the fuel pump to operate as it fills the fuel system lines. PCM BLACK CONNECTOR. The ASD relay is located in the Integrated Power Module (IPM), in the engine compartment. Its the white wire with a black stripe. Reconnect the battery lead and the ground. Now the old style pump is supposed to have 3 wires and the new style pump is supposed to have 4 wires. Terminal 87 supplies voltage to the. This leaves an empty terminal on the relay. I cut through my truck bed right above the fuel pump so I would have easier access to it. Fuel Pump Relay Diagnostic/Troubleshooting Notes: FP relay terminal A (ORG wire): Should have 10 to 12 Volts DC with Key On Engine Cranking or Key On Engine Running (KOER). Remove one of the 1/4-20 x 1/2 in. Pull it out and inspect it for signs of failure. Notice: These tests must be done quickly (within 10 seconds) to prevent the coil from burning out. Fuel gauge and fuel pump share a common 'ground/earth' on the black wire in the X10 connector. Jump to Latest Follow 1 - 7 of 7 Posts Same / similar issue w/ the misfire, non running. Circuit 450 off of the relay is black w/ white and is a ground for the coil side of the relay, the part the controls the switching on and off of the power. 18/ft: 8/3C w/ Ground Flat Yellow Submersible Pump Cable » $1. The wire colors in the manual dont match the boat. Standard resistance. next, check for fuel pump signal at the fuel system control module. The combination that gets 0v is the one that powers the pump. For vehicles that won't start (out of gas) or have a dead battery (fuel pump runs after turning vehicle off). It is not priming, or pumping. If it clicks, and if GRN/RED and GRN wire don't have power, change the relay. Listed below is the vehicle specific wiring diagram for your car alarm, remote starter or keyless entry installation into your 2008-2010 Dodge Charger. it states # 86 goes to ground. Its burned out a fuel pump and that gets both expensive and frustrating. You should find the gauge feed in the X10 comes from the dash cluster The pump and gauge have separate power feeds but a common Ground. Tracing it all the way back, it does appear that Grn/Org is the. I get a 12v reading on 4 of the 6 combinations of the 4 wires. I cut through my truck bed right above the fuel pump so I would have easier access to it. Ran a wire directly to fuse and pump turned on. (3) Measure the resistance according to the value(s) in the table below. DIY: 1998 Volvo V70 Fuel System Troubleshooting Tips * No-start is a very frustrating problem for car owners, so download these diagrams (and a jumper wire) and keep them in your glove box. Connect the ground wire from the fuel pump to ground as shown in the illustration below. Measure the resistance between the terminals. Pull it out and inspect it for signs of failure. It was a ground wire that comes out of the wire harness and attaches to the bed with the ground strap for the filler neck. switched out relay good 3. did you make sure the stop lanyard is in place,if its not you should get an audible alarm,if they actually work, and no pump voltage. I have an issue with my fuel pump I keep losing ground truck won't start I remove the bed pull the ground wire off cleaned it stuck it back on with a good ground fuel pump started working again I. Re-install the fuel pump assembly with the new fuel pump. Current and ground along with no fuel pressure suggest a bad fuel pump. 7L Fuel pump ground wire help - I am replacing my fuel pump and I need help on finding out where my ground connects to on the frame. Inspect fuel pump. Ground the final wire from the relay (I think it's terminal 86) to the fire wall. The ground wire of the coil. With your wire cutters, simply cut the black wire about 1" (2. of pressure at idle. You have to modify an offset wrench to be exceedingly thin in order to fit between the pump and valley to get the servo advance cover off. please advise. Didn't test ground wire to fuel pump individually. Usually a bad or failing fuel pump relay will produce a few symptoms that can alert the driver of the issues. No pressure is leading to the fuel filter. Listed below is the vehicle specific wiring diagram for your car alarm, remote starter or keyless entry installation into your 2008-2010 Dodge Charger. The tan/green wire I mentioned is a splice wire that is tied into the trigger wire from the fuel pump relay to the ECM. 3 - Mix the 50/1 oil in the proper amount with whatever quanity fuel you have. There is power going to the fuel level sender (12v without it connected 3-8 with it connected) , but no power at all going to the far left pin (red wire internally). CONNECTOR/GROUND/SPLICE LOCATION 8W91 - TABLE OF CONTENTS. The fuel pump and fuel tank sending unit ground at a sheet metal screw up behind the spare tire on an XJ, and behind the driver's taillamp on an MJ. Hey hey fellas im trying to hunt down a fuel issue with my car. After I put on the extra ground wire and drove home, I noticed that it didn't chug as much, so I'm wondering, where are the ground wires located so I can replace them, ALL of them. This is a ground to turn on the light. Didn't test ground wire to fuel pump individually. As the fuel pump relay controls power to the fuel pump, any faults with it can cause issues with the fuel pump, which can cause drivability problems for the vehicle. Was told that this was a common problem with S-10's and Silverados of that era, but the Chevy mechanic said he never saw it on a Vette before. Clogged fuel filter; Failed fuel pump; 86-90 models only: Blown fuse link in wiring harness. If the fuel gage is bouncing then there has to be a problem with the gage or the sending unit. Then butt-splice the ground wire to the brown wire from the. Notes: Fuel Pump and Strainer Set -- Used to service modules with Ford OEM Module style connector; Fuel tank contamination is the leading cause of premature fuel pump failure. Check for damaged wires. Can supply 12v to the pump but uses 3 wires (green, orange, and blue), 2 of which show continuity with ground on one pump, only one wire and ground in the original pump. above listed order. ECU, lighting, or fuel pump should not be used. Plug the fuel pump relay harness into the relay, until it locks into place. if i just connect 12 volt from fuel pump harness and ground from the car to relay it works, but as soon as i connect fuel pump to relay it wont switch off. The information provided on these pages is correct to the best of my knowledge, however the MasterTech makes no warranty, express or implied, regarding the use of, results of, or liability created from, application of this data. If the power and ground is correct, the problem is with the relay. Fuel pump ground location Started the other day was going down the road and the truck shut down and wouldnt start so i left the truck sit and today didnt even mess with the truck and it started right up and it ran for 10 minutes and then i shut it off went inside and walked back out went to go start it and nothing. Fiat 500 Fabric Fuel Line. Re: No power to fuel pump I apologize , but I cannot research tonite , I will start again in the morning. The fuel sending unit should have a pink wire with voltage on the isolated center post. I've checked the continuity of those ground wires and they all seem good. I feel like I'm exhausting possible faults. Proceed at your own risk. Fuel pump is new, tested and is good. 12V 220V Diesel Pump Set Diesel Fuel Transfer Pump Diesel Fuel Pump 1. That provides a good location to ground stereos, gauges, whatever. How to wire an electric fuel pump I am finishing up a complete rewire of my 28 PU with a harness kit. The ground for the fuel pump is G101 located in the lower left front of engine compartment. I might take your advice and relocated the firewall braided steel ground strap as I can't possible get to the other mounting location deep behind the block somewhere. Start by checking the fuel pump fuse. Recommended Posts. This will act like a single switch. There around $15. TEST 3: Jumpering The Fuel Pump Circuit OK, so far you have confirmed that the fuel pump relay on your Ford car or pickup is getting power on wires labeled with the numbers 2 and 4. In the case of a horn, the horn button would be used to switch the ground lead(85) and power(86) would be provided directly from the fuse box. Hook the test light to the positive side of the battery and probe the ground wire to the fuel pump. Performance Injectors are available for your custom car, truck,atv, motorcycle, sand rail or other application. if this has 2 fuel tanks, the connection at the switching valve needs to be checked. Now it won't do it at all and I was sure it was the pump, once I pulled the pump out I shot pin 4 to ground and didnt get anything so I thought I reassured myself of the pump. For anyone else interested, the wire runs from the battery down to the frame just behind the driverside fog light. Power to the fuel pump goes through splice S 132 located in the dash panel to headlight harness near take off to inline Circuit 100F. There are cores needed …. I know that two are for the fuel guage, and at least two are for the fuel pump. The fuel pump stayed on constantly once the key was inserted. Home Air, Fuel, Emission & Exhaust Fuel Pumps & Tanks Fuel Pump Electronics Fuel Pump Relay Fuel Pump Relay. The relay wires should have ground on two wires, power on one wire and switched power on another wire. After the fuel pump does its 2-5 second prime and shuts off,the ecm looks for the signal from the pip sensor (inside the distributer) to verify the engine is cranking then the ecm turns the fuel pump relay ground (pin 22) back on to energize the fuel pump again. Pull it out and inspect it for signs of failure. Each kit is complete with: 18' of 12-volt activation wire lead, 18' of 12-volt battery wire lead, 18' fuel pump 12-volt lead, 18' of ground wire lead, two red 12 ga. Connect the short black wire to the ground from relay terminal #86 (relay screw mount works well). Terminal 30 - to the larger power wire (coming from the rear) that was connected to the fuel pump side of the pink wire. 85 should have good ground from ECU. The pump is able to deliver far more fuel than you usually need. as the teeth of the tone wheel align the coil of wire around. Article 514 - Motor Fuel Dispensing Facilities. Route the wire to the panel and connect it to the "FUEL PUMP" location. jack up the back of the car and figure out what wires are for the fuel pump. The only electrical requirements to a storable above ground pool are as follows: If electric is required to supply a pool filter pump motor, or a pool low voltage underwater light fixture listed and labeled for us with a storable pool that is 42" deep or less, NEC Article 680. • Connect a ground strap from the engine to the body. It points to all of that stuff between the car's power system and the pump - relays, wiring, switches and such. Took it back to the mechanic and he said that the new fuel pump must be bad. Measure the resistance between the terminals. Because as long as the fuel pump has power (aka, the ignition switch is in the "on" position), it will happily keep pumping fuel - even if a fuel line ruptures. The feed from the gauge is grounded through the variable resistor in the tank which causes the gauge needle to move. How to wire an electric fuel pump I am finishing up a complete rewire of my 28 PU with a harness kit. I changed the fuel pump on my 1996 GMC Sierra earlier in the year. Proceed at your own risk. Since you will be splitting the stock cut black ground wire into 2 black wires that will ground each of the new fuel pump relays you will want to put the Hobbs pressure switch in-line with only one of those two wires so the other fuel pump relay still can activate with your ignition turning on. A very high resistance (open circuit) in either fuel sender circuit causes the fuel pump balance module to produce a zero output (both tanks empty) signal to the fuel gauge. If you can not find a ground wire loose or broken you and always run new ground wires and it will save a lot of time and headaches. on your web site it shows this diagram with #85 going to ground. The tools and supplies needed include 1/8" and 1/4" flat-blade screwdrivers, wire cutter and crimping tool, 12-mm socket and socket wrench with a 3" extension, electrical tape, about 3" of 16 or 18 gauge insulated. Use the voltmeter to check for power at the fuel pump harness connector. Transfer Pump Fuel Return Through Heater Fuel Supply to Engine Fuel Pump Optional Heat With Coolant Fuel Tank WIF Probe. Page 33 ELECTRICAL WIRING ROUTING : Location of Connector Joining Wire Harness and Wire Harness : Location of Ground Points W-R B-Y (M/T) B-O STARTER RELAY CIRCUIT OPENING RELAY W-B L-B B-O INJECTOR W-B L-B FUEL PUMP. Phone #: 888-235-6456. It is not priming, or pumping. Replaced both relays and didn't change. label wire (see below) On the injectors harness (picture below) is three more wires. The high pressure fuel pump does not need to be removed and replaced. This will pull in the fuel pump relay and you SHOULD get 12VDC at the fuel pump connector with the ingnition switch ON. I bought and replaced module and listed the scan below which shows a fuel pump relay code. I have tried to list all possible wires that will show up 99-02. power goes to the inertia switch via dg/ye wire, then from inertia to the pump via pk/bk wire. Now it won't do it at all and I was sure it was the pump, once I pulled the pump out I shot pin 4 to ground and didnt get anything so I thought I reassured myself of the pump. Black - Ground for everything, all three fuel pumps. I changed the fuel pump on my 1996 GMC Sierra earlier in the year. The electric fuel pump is near the gas tank. The fuel pump is brand new and also the Fuel Pump Drive Module is brand new and the car starts if you put starter fluid which means it is a fuel pump problem. Ground wire in the back of engine block went bad! GM 4. Connect the long red wire from relay terminal #30 to the fuse box with supplied fuse tap and inline fuse. Fuse is good as well. No pressure is leading to the fuel filter. Electric fuel pumps require a lot of current, so it's important to run a relay circuit from the pump trigger lead and to run 12-gauge positive and negative wires to the fuel pump. If not, it is a fuse, ignition switch, or wiring issue. jack up the back of the car and figure out what wires are for the fuel pump. FUEL INJECTOR FUEL PUMP IGN, VSS DATA 2. To me this means to my battery. I called a professional thinking that I'd screwed something up. DIY: 1998 Volvo V70 Fuel System Troubleshooting Tips * No-start is a very frustrating problem for car owners, so download these diagrams (and a jumper wire) and keep them in your glove box. The fuel tank is full. Keep the fuel pump as. Power to pump from the relay goes thru connector C420 terminal E, Ground for the pump goes. Anyone know where the location of the fuel pump relay is on a 94 s10 2. If no power is present, trace the wiring from the relay circuit to the fuel pump harness. If I show a wire, and your harness does not have it, you probably don't need it anyway. There around $15. 1680 West Winton Ave Ste 3, Hayward, Ca 94545. Other electrical problems that can affect the pump include low voltage in the pump's power supply circuit or high resistance in the pump's ground connection. Universal Electric Fuel Pump Installation Instructions source controlled by the ignition switch (described in step 1 of this section). Attach one wire that is going to the pump to the screw head terminal that sets just next to the power wire. Fuel System; Fuel System. • Connect a ground strap (minimum of a 00 Ga. I disconnected and reconnected negative battery cable a dozen or so times. Lawn Equipment Rentals. Connect the long red wire from relay terminal #30 to the fuse box with supplied fuse tap and inline fuse. Hope someone can help. Remove the tape, and discard the original. If I show a wire, and your harness does not have it, you probably don't need it anyway. Attach the black wire from the electric pump directly to the frame of the car by removing a nearby screw or bolt, passing it through the ring terminal at the end of the wire and then re-attaching the screw or bolt. Fuse is good as well. Start vehicle and inspect to assure no fuel leaks exist and electrical connector is. I use a jumper wire (ideally one with a 16 amp inline fuse) and connect the fuel pump socket's terminals 30 and 87. Good luck! Definitely try and contact BP. The connector hangs down low enough to hit the header which burns the connector and ultimate shorts the pink/black wire to the header. Connect the black ground to either 85 or 86, it doesn't matter which. When I was done, without putting the bed back on, I tried to start the truck. Before removing the sender and fuel pump, where does the ground (earth) wire from the sending unit attach to the body? I want to rule out a bad ground before getting any deeper into this repair. There is a seperate wire connected to the sender base (black) that is to be used as a ground. Inspect fuel pump. ECU, lighting, or fuel pump should not be used. For vehicles that won't start (out of gas) or have a dead battery (fuel pump runs after turning vehicle off). Add to Cart. location of fuel pump 1997 cadillac deville the filler tube the rest will lover to the ground with the tank. Inspect fuel pump resistance. I still can hear the relay click. I cut through my truck bed right above the fuel pump so I would have easier access to it. Replace wire. location of the splice in the wiring harness. This ensures the pump gets the required amperage without over-heating the wires. 30AM -4PM PST. Fuel Pump is bad. By beeto24, October 5, 2008 in 1999-2013 Silverado & Sierra 1500. If you have power on 88d and the pump still doesn't run, check for continuity between the pump's power connection and 88d, and check that the pump has a good ground connection. The polarity function is to be sure the motor in the pump runs in the right rotation. (Note* - if one owns a W211 E55 AMG, this is not the fuel pump relay, it is the heat exchanger cooling pump relay. when i turn the ignition on no fuel pump heard already did these things 1. The fuel pump and fuel tank sending unit ground at a sheet metal screw up behind the spare tire on an XJ, and behind the driver's taillamp on an MJ. how do you know there is no power to the pump? are you checking at the pump? if so, pull out the wire diagram and trace the power wire back to its source. Diagram shows the 2 separate "pump" areas in the single unit, the plumbing runs to in the CAPS II pump; ie one IN/OUT (7, 9 in diagram), (This is the Gear pump) which is also before the secondary filter and one IN to the high pressure pump unit at the end of the fuel loop (11 in diagram), after secondary filter. Apply the battery voltage to both the terminals. 53 mm) diameter loop end and a 72" (1828. The black/white-pink wiring goes to the ECU (at least on my car). Check for voltage at fuel pump as you did earlier. Ok, the ground for the fuel pump motor, the black wire grounds to ground G104 if ABS or ground G103 if not ABS. - when you switch on the ignition the DME operated the fuel pump relay but (as the other message states) it drops the relay after a short period (do not have the timing) if it does not see that the engine has started. Also see: Jeep Cherokee fuel pump replacement Minivan fuel pump / gas tank replacement Warning. the grey wire is the 12v supply when engine oil pressure goes over 4 psi. how do you know there is no power to the pump? are you checking at the pump? if so, pull out the wire diagram and trace the power wire back to its source. Took fuel pump out of tank and put power to pump - fuel pump works. Save Share. To access it, you'll need to open the. The fuel pump circuit is somewhat involved, the EVTM I described has the diagram for it. Access to the top of the tank is provided by a panel on the floor of the cabin in between the seats. I changed the fuel pump on my 1996 GMC Sierra earlier in the year. This ground source normally comes from the crank sensor or the fuel computer and senses that the engine is rotating; hence the fuel pump will run. replaced pump and runs w/a ground "jump wire" but didn't know where the grounding issue would be. Tuck your wires away and test that the switch works. 2 The BLACK wire should be grounded to a solid ground source. Connect HT to a ground. Which wire did you connect? On this diagram, the black and yellow wire from the fuel pump relay is the trigger wire going into the fuel pump controller, and then the fuel pump. PCM BLACK CONNECTOR. Looking ahead to the future, Holley has designed their latest retrofit pump module especially for the carbureted. Pull back the black sleeving to expose the wiring leading back to the beige box as shown at right: Step 6. Relays are a way to use a small or low voltage signal to close contacts that will pass a much higher voltage o. Crimp on a connector to the other blue wire (the blue wire still attached to the fuel pump), and attach it to terminal 30 of the relay. At first I thought it was just the old rusty bolt that grounds the fuel pump wire to the frame so I switched the bolt out. I get a 12v reading on 4 of the 6 combinations of the 4 wires. connect pin1 (black ground) to pin16 (pink ground) 2. Now it won't do it at all and I was sure it was the pump, once I pulled the pump out I shot pin 4 to ground and didnt get anything so I thought I reassured myself of the pump. There is a lot of confusion and misunderstandings about them. You should find the gauge feed in the X10 comes from the dash cluster The pump and gauge have separate power feeds but a common Ground. the pump in the tank and if its. According to the wiring diagram gods, that cable runs from tank to PCM with no change in the color of those wires. Guys who continuously run down below a 1/4 or less can expect a shorter fuel pump life. For Sale - 49 Bald Cypress Ln, Levittown, PA. 08-23-2017, 08:32 PM #14. Also pull the breather off the filler neck. To test the relay see if this helps. 8L F150, F250, and F350 with dual/single gasoline tank. The fuel pump is powered by the fuel pump relay. One, usually red, goes to the positive side (ground) in most old Fords, with the other, usually black, is connected to the switch. There is no power from the main relay at all from the black/yellow wire at the fuel pump relay plug. Two things can interfere with fuel pump startup—the fuel pump relay or the inertia switch. Ford OBD1 Codes and Procedure - Free download as PDF File (. Fuel Pump Ground To Frame / Harness Location. The fuel pump and fuel tank sending unit ground at a sheet metal screw up behind the spare tire on an XJ, and behind the driver's taillamp on an MJ. If you can't easy find all of these. 1993 Fuel Pump Circuit Tests (GM 4. Disconnect sender terminal wire at dash gauge. of pressure under open throttle. Often, it's not the pump itself that fails to function, but the power that supplies it. Hook the test light to the positive side of the battery and probe the ground wire to the fuel pump. Missing this. This grounds the circuit that activates the fuel pump. Fuel Pump Re-Wire in the Mitsubishi 3000GT/Dodge Stealth The shortest practical path between the stock battery location and the fuel pump (through the harness opening near the battery and along the door sill) is about 12 feet. next, check for fuel pump signal at the fuel system control module. No noise coming from the fuel pump when the key is turned, nor can I hear any click from the fuel pump relay located between the washer pump and master cylinder on the firewall. 5 amps) on the wires between terminal 30 to the battery and terminal 87 to the pump. The black/white-pink wiring goes to the ECU (at least on my car). (Note* - if one owns a W211 E55 AMG, this is not the fuel pump relay, it is the heat exchanger cooling pump relay. Poke the new fuel pump wire through this grommet. Imagine how terrible it would be if you were putting gas in your company truck or your personal automobile, and the gas dispensing station erupted into a ball of fire. Connect a ground to terminal 1 and battery voltage terminal 2. no ground for fuel pump detectedi used a test light for thiese tests a. pink and black wire, 30-amp weather resistant relay and. Make sure that all the ground places are clean and shiny bare metal: no paint, no. did you make sure the stop lanyard is in place,if its not you should get an audible alarm,if they actually work, and no pump voltage. FUEL INJECTOR FUEL PUMP IGN, VSS DATA 1. The fuel pump did work before the flip, but does not after. Also make sure the connection is secure and tight. Equip cars, trucks & SUVs with 2013 Fiat 500 Fuel Pump from AutoZone. So the pump never turns on when the key is. Cut the first pair of wires 2 inches (50 mm) away from the taped electrical connectors (4) and stagger each of the cuts 1. I prefer to ground it near the MS case. One wire: Pump must be battery or. I haven't seen any of these pumps where the case wasn't isolated from the motor. Speed: 2800rpm 5. The electric fuel pump is near the gas tank. During the summer months, the heat pump works like a high-efficiency central air conditioner. I have pics, I need to know the pin numbers and what color wires go in each. I could also see the gauge move a bit while driving. I installed another relay to switch ground to the connector on the Fuel Pump relay. 27 volts and the other connection I get 0v. Does the fuel pump run? Also: Is there bright white spark at all 4 spark plugs, even though the fuel pump does not prime? Any CEL codes?. It sends a ground signal to the fuel pump relay. 1993 Fuel Pump Circuit Tests (GM 4. Of the 3 wires going to the pump assembly, the red is hot on the pump, brown is ground, and the purple/white is the fuel gauge sender. FP relay has batt voltage and voltage from the main relay but no ground signal from the ecu to energize relay. Disconnect wire from sending unit at tank. I replaced the relay with no change. To test, you need to take the connection off of the sending unit, at the tank, turn on ignition, and then ground and un ground it and view results at the gauge. My gas tanks straps broke n my tank hit the ground and the wires pulled out of the connector and now I can't get the pump to turn on Show Full Signature 3"BL 33x12x5 on ion 15x8 dwight TB and spacer, projector headlights, euro tails, 20% tint, procomp shocks, westin bull and nerf bars, k&n fipk, flomaster cat-back duals, and a superchips tuner. Also have the 5v on the purple wire and good ground on the Blk/Wht wire for the gauge. Fill-Rite 12-Volt 15 GPM 1/4 HP Fuel Transfer Pump with No Accessories (Pump Only) The FR1204G model is a 12-Volt 15 GPM The FR1204G model is a 12-Volt 15 GPM fuel transfer pump designed to handle the transferring of diesel, gasoline, kerosene, ethanol blends up to 15%, methanol blends up to 15% and bio-diesel up to B20. Kit includes:30 Amp Heavy duty relayRelay base with wire harness30 Amp circuit breakerCrimp-on terminalsMounting hardware. The fuel pump balance module responds to a very low resistance (short to ground) in one or both fuel sender circuits by considering the affected tank(s) to be empty. that is the main PCM ground along with a bunch of other stuff in the fuel injection system. Using a volt-ohm meter, compare the voltage at the pump (use that short section of exposed wire and the ground. 1994 Fuel Pump Circuit Tests (GM 4. #N#1995 Caprice / Impala SS / Road Master LT1 & L99 Engine Wiring Schematics: PCM POWER & GROUND. Connection to a battery will depend upon the application. Standard resistance: 0. Check to see the main connection is in decent shape. Lead wire and electrical ground options A. There is power going to the fuel level sender (12v without it connected 3-8 with it connected) , but no power at all going to the far left pin (red wire internally). It saves on electricity and fuel pumps. Black - Ground for everything, all three fuel pumps. And there were two versions: Mechanical Pump: For the first few years those with a mechanical fuel pump got the simple switch and 3-port selector valve shown on pages 95 and 100 of the 1986 EVTM. 8 mm) black ground lead with a 3/8" (9. Plug the electrical connector back in. Ground the final wire from the relay (I think it's terminal 86) to the fire wall. Any suggestions would be greatly appreciated. wire) from the engine to the chassis (frame). Ford OBD1 Codes and Procedure - Free download as PDF File (. A wiring diagram is necessary for the various connectors. Hook the test light to the positive side of the battery and probe the ground wire to the fuel pump. I removed the fuel pump again and replaced the whole positive wire with one of the wires that came with the fuel pump. each wheel speed sensor has one wire grounded inside the abs controller. 85 - to ground 87 - should be a #12 to the pump The image below depicts a standard. find the dark green/white wire in pin13. CLICK ON A FIGURE CONNECTOR NAME / NUMBER COLOR LOCATION FIGURE ASSEMBLY-WINCH (GROUND) - BEHIND FRONT BUMPER 2 AUXILLIARY PDC BOX (DC) - LEFT REAR ENGINE COMPARTMENT 34 MODULE-FUEL PUMP. With Key in pos 2 and a hose connected directly to the pump, there is no fuel coming out. Terminate the other set of contacts in the same manner. Continuity test if power wire from fuse box to plug at pump check out good. Fuses are good. I put another fuel pump in and nothing. Reconnect the battery and turn ignition switch to 'run' position. The contact owned a 2000 Chevrolet Venture. That makes sense to me because the wire in question (on the RS fuel pump) was internally shorted to the temperature sensor and then grounded, and that RY wire neve came out of the fuel pump harness.