April 27, 200619 yr my fuel pump doent run, i switched it out with another one and still no good, so i dont know what the problem is? anyone got ideas?
April 27, 200619 yr Author check for power at the fuel pump i did after i put in the second one, and there isnt any, but the wire harness goes threw the inside of the car dont it and then ill have to like take apart the whole interier wont i?
April 27, 200619 yr This really needs to be stickied... The fuel pump runs from the FPCU (Fuel Pump Control Unit). If the engine is NOT running, then the fuel pump is shut down to prevent it from running after a serious accident and spilling fuel all over the flamable scene. Just because you have no power at the fuel pump does not mean it isn't working exactly as it should. It runs for a few seconds when you turn the ign. on, and runs while cranking but stops if the engine doesn't catch. Make sure you have spark and air, etc. GD
April 27, 200619 yr Hotwire the pump and see if it runs then. If it does the FPCU, a fuse or the relay are bad. On my 83 turbo (not likely the same as yours) the relay is under the pass seat. The FPCU is up above the drivers kick panel near the fuse box and ECU if your car has an ECU.
April 27, 200619 yr On my 83 turbo (not likely the same as yours) Actually - that's pretty accurate - FPCU is bolted to one of the hood release cable bolts under the driver kick panel. GD
April 27, 200619 yr i agree with general disorder..best way to check if everything is fine..is see if you have 12v whilst cranking..if not then there is a fault with the engine revolution sensor under the drivers kick panel..or fuse...cheers
April 29, 200619 yr Author OK yes under the pass seat are 2 relays, one is burned up, well the ground wire is all the way threw the wiring harness, should i swop it out with the other wiring harness and risk it happening again? or what caused it to get that hot and melt the wire threw the wiring harnes and melt the tape? Hotwire the pump and see if it runs then. If it does the FPCU, a fuse or the relay are bad. On my 83 turbo (not likely the same as yours) the relay is under the pass seat. The FPCU is up above the drivers kick panel near the fuse box and ECU if your car has an ECU.
April 30, 200619 yr Author yea i followed them to all the other ground wires It's shorted out somewhere, are you sure it's the ground wire that's melted?
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