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'88 T bird turbocoupe fuel pump wiring diagram. I'm getting no fuel pressure,so, I'm trying to diganose the problem by running a jumper wire to the fuel pump.

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  • Brew Meister Sep 02, 2010

    There is no power going through your fuel pump fuse, or there is and there is no fuel coming up from your fuel pump. Do you have fuel injection and if so, do you have fuel coming up to your pressure pump going to the injectors? And if there is, does the computer distribute fuel to your injectors

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6ya6ya
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Posted on Jan 02, 2017

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stormbrewin
  • 426 Answers

SOURCE: 1996 mazda mx6 ls cranks but won't start

you may need to run a wire from a keyed ignition source that has power while cranking and running to the fuel pump relay and bypass the pcm to test wether it will run, if it runs put a more permanent wire in place.Not too sure what tests youve done but it seems that fuel is what your focusing on so a quick test is too spray engine start up the intake tube to see if the engine trys to run if it does it eliminates a lot of other potential reasons for a no start condition.Also try squeezing the fuel return line to see if the added pressure will try to make engine run.Could be time to replace fuel pump etc anyway let me know how it goes good luck with it

Posted on Dec 12, 2008

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mechanicm639
  • 253 Answers

SOURCE: 2001 Chevrolet Impala 3.8 fuel pump wiring diagram

The wires should be grey, orange and black, purple, and a black wire. The purple goes to purple, grey to gray. The orange and black goes to the small black wire on your car harness and the black goes to the bigger black.

Posted on Apr 30, 2009

  • 105 Answers

SOURCE: need wiring diagram for 1991 honda accord to trace

email me at
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Posted on Sep 24, 2009

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SOURCE: 91 ford ranger...fuel pump will not run pump is good

It won't hurt to jump sire to drive, It is designed to pump all time when the engine is running. The only problem is the pump should not be on if engine is not running since it is designed that way to prevent a fire while pump continues on once engine is stops in a car accident. There is a control device to immobilize the fuel pump, if there is no speed sensor signal from the crankshaft. This needs to be located and fixed.

Posted on Oct 14, 2009

johnjohn2
  • 5763 Answers

SOURCE: need a diagram for wiring trying to trace wiring

Heres a wiring diagram for the fuelpump.bbadc54.gif

Posted on Oct 04, 2010

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2 Answers

How do you know fuel pump is bad, is there anyway it can be checked?


Well you use a fuel pressure gauge to check pressure at the injector rail, and you can check for power and ground at the gas tank to make sure the pump is running.

Feb 27, 2013 | Cars & Trucks

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Repacing fuel filter on 1996 intrepid


1) Relieve the fuel system pressure by first removing the fuel pump relay from the Power Distribution Center. Then, start the engine and let it to run until it stalls. Try starting it again and allow it to run until it stalls. Continue restarting the engine until the car will no longer start. Turn off the ignition.
2) Disconnect one electrical connector from an injector. Use an alligator clip to connect an end of a jumper wire to either injector terminal. Connect the other end of the jumper wire to the positive side of the battery. Then, connect an end of a second jumper wire to the other injector terminal. Very briefly touch the other end of the jumper wire to a ground.
3) Locate the fuel filter, which is part of the fuel pressure regulator mounted on the fuel pump module. Disconnect the negative battery cable, then lower the fuel tank. Disconnect the fuel lines from the filter.
4) Remove the fuel line from the pressure regulator. Remove the filter/regulator by pushing in on the locking tab on the filter as you turn the regulator to unlock it. Then, pull it straight up.
5) Push the new fuel filter into the fuel pump module. Turn to lock it in place. Connect the fuel lines, and then you can reinstall the fuel tank. Check for leaks when you start the engine on your Dodge Intrepid.

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May 30, 2012 | 1999 Dodge Intrepid

1 Answer

1996 olds 88 3.8 engine starts up runs about 15 minutes then shut down.Wait a while and will do same cycle over. I replace fuel pump, filter tank clean. No codes, engine runs find until it stops getting...


There is a fuel pump prime cycle (2 or 3 seconds)when you turn the key to on and once you start the engine the fuel pump power comes though the oil pressure switch.No oil pressure,no power to the pump.maybe your oil pressure switch has become weak?I would use a scan tool and command the fuel pump on when it does shut off,just to make sure the pump can run,as it could be a bad pump too.Also when it does quit,if you turn the key off for 10 seconds, you should get a prime cycle by turning the key to on.Have someone listen at the gas tank for a fuel pump noise,which will be only 2 or 3 seconds,but will do as a pump running check.Next would be to check for power at the back at or near the fuel pump,power and no pump.replace pump.No power to pump,follow power back to the front through oil pressure switch and fuel pump relay etc.You can always add your own power to the pump from a power source the switches off with the key if needed bypassing the existing wiring and oil pressure switch.

Mar 15, 2017 | 1996 Oldsmobile 88

1 Answer

I have a 1989 chevy s-10 blazer. i have replaced the fuel pump, the fuel pump relays and i hooked up the pump for a dry run before putting it back into the tank, the float neddle works but the pump is not...


If you didn't damage the fuel pump with the dry run, and the relays are new, and the wiring is connected properly, it should work. If you have checked all the fuses in the fuse panel and none are blown, I don't think the fuse would be anywhere else. I've got one idea you can try. It's a long shot, but I've seen it happen several times. The oil pressure sending unit or switch, is tied into the fuel pump wiring. If the oil pressure switch is bad, or the oil pressure is low, the fuel pump will be shut down. Disconnect the oil pressure switch and use a piece of wire or a sturdy paper clip and make a jumper wire. Plug the jumper into the end of the oil pressure switch wiring connector and try the ignition to see if the fuel pump works. If that doesn't work, I'll do some research on the fuse location. Good luck.

Jan 04, 2011 | 1989 Chevrolet S-10 Blazer

1 Answer

1995 pontiac firebird ,I replaced fuel pump ,fuel pump relay ,the only way i can get fuel pump to run is unplug relay put jumper wire across terminals from red to gray wire,then i have good fuel pressure...


Your OIL Pressure Sensor Serves as A Protection Device Along with its Primary Purpose, If It Sesces NO OIL PRESSURE >> (Or it Malfunctions) It WILL NOT Provide the GROUND that the FUEL PUMP RELAY Or Fuel PUMP REQUIRE to Turn ON the Fuel PUMP, To Check this Disconnect the Sensor and LOACTE the KEY ON POSITIVE WIRE of the 3 WIRES on It>> K THIS WIRE DO NOT BOTHER it Identifie it & MARK IT)) and Use the Other 2 Wires>. JUMPER Wire Accross the 2 Remaining Wires on this Sensor PLUG This Should Cause the Fuel Pump RELAY to CLICK Thus GROUNDING the Relsy Allowing it to Provide ground Resulting in POWER to FUEL PUMP. If This Jumper Procedure Works REPLACE the 3 Wire OIL SENDING UNIT Some have 2 an you ONLY NEED the 1. I am Sure this Has and WIll Give you MORE INSIGHT On this System and Help you get it Running. Have a GOOD DAY !!

Aug 17, 2010 | Pontiac Firebird Cars & Trucks

1 Answer

No fuel pressure asd&pump relays energized


The fuel pump relay won't energize if the ignition is bad, or the fuel safety cut out is bad. Don't know what Dodge uses. Ford has an inertial switch in trunk. Many cars use the alternator. Some use extra wires to the oil pressure sender. Try looking at the wiring diagram on relay side, and jumper the outputs where relay plugs into, bypassing the relay completely. The pump should hum and you should get pressure. If not, make sure the tank isn't buiding up vacuum, and make sure the power and gound are good at the pump.

Mar 31, 2010 | 2005 Dodge Caravan

1 Answer

89 thunderbird - 3.8 Car dies


i had this problem on my 88 t-bird 3.8L. not exactly sure of the cause but to remedy mine... it seems the computer was not telling the fuel pump that the car was running. so the fuel pump would quit pumping. run a wire from your battery to the positive line going to the fuel pump (temporary). if this solves the problem (and you don't mind solving it this way) make the wire run clean and hook it to a switch so you can turn it on when you wanna drive. this is not the way a dealership would fix it but its also not gonna cost you more than you probably have invested in your car. hope this helps

Feb 17, 2009 | 1989 Ford Thunderbird

1 Answer

1996 mazda mx6 ls cranks but won't start


you may need to run a wire from a keyed ignition source that has power while cranking and running to the fuel pump relay and bypass the pcm to test wether it will run, if it runs put a more permanent wire in place.Not too sure what tests youve done but it seems that fuel is what your focusing on so a quick test is too spray engine start up the intake tube to see if the engine trys to run if it does it eliminates a lot of other potential reasons for a no start condition.Also try squeezing the fuel return line to see if the added pressure will try to make engine run.Could be time to replace fuel pump etc anyway let me know how it goes good luck with it

Dec 12, 2008 | 1996 Mazda MX-6

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