Fuel Pump Not Firing

[djinuk 2]

I did a gti6 conversion using spikys loom etc, and it was running fine, then i removed the dash etc and painted inside the car, then a year later put it all back together and the fuel pump isnt firing unless i give it power direct, which parts of the loom should i look into being the culprit ?, or maybe relays, or could it be the ecu ? car turns over etc, just no priming off the pump at all, when i give it direct the car fires into life.

[Paul_13 212 1 Cars]

Is fuse number 14 present in the fuse box?

[djinuk 2]

presume it will be as i didnt take it out, however the cars been outside , with doors hanging off etc you see, maybe some corrosion present.

[Paul_13 212 1 Cars]

Check the multiplugs, the thick white wire is your fuel pump wiring, check you have voltage.

 

If it was a lock ECU it would not fire at all as voltage to the injectors and coilpacks are cut.

 

Might be worth trying another double relay, little black box near ecu.

[djinuk 2]

sweet that gives me somthing to go out, amp meter out tomorrow and ill see where the prob is, changes are its just the wiring as a few bits have gone green over the last year, want to get it fired up and check all the bits like fans etc are working as they should.

[Paul_13 212 1 Cars]

all the clocks etc are lighting up?

Your shunt box got power? (Little black box in engine bay)

[djinuk 2]

not sure about the clocks all lighted up, i have most the gauges etc, does some of the fuel pump wiring go to the back of the clocks, ill check the shunt box but i presume its got power as everything else is working i/e its sparking/ cranking etc.

[Paul_13 212 1 Cars]

I think the fuel pump gets power from the fuse board, but could be wrong. Been a while since I looked

Edited July 12, 2011 by Paul_13

[djinuk 2]

hmm, tested for power nothing, traced the white cable to fuse box (large plug right at the back and tested for power from there nothing.. any idea which is the fuel pump relay.

[Paul_13 212 1 Cars]

It's the black box behind the ecu. Double ignition relay is the name of it.

Unplug and plug it in a few times, terminals might be corroded

Edited July 12, 2011 by Paul_13

[backroadpug 12]

I had the same prob no live to my fuel pump after an mi16 was fitted.

I just unpluged the fuel pump relay removed the plastic cover gave it a blow and a few taps plugged back in and started first time.

[djinuk 2]

sorted.. turned out id plugged the wrong 2 pin yellow plug into the fuse box.. thanks for the help guys .