Fuel Issues

[justin911]

hey ppls

i need urgent help please.. i picked up my car from it being at panel beater for a month yesterday and it was screwed.. it was constantly stalling on idle.. you could drive on boost etc though but it as soon as it idled at the lights it would just die.. so i went back to them and we spent a few hours yesterday investigating it and aparantly the fuel pump must of randomly died.. evan though the car worked on boost.... so i had her towed home from the panel beater which was great...

anyways ive put my stock pump back on and she aint working still... the car wont evan start up.. I tested the stock pump with a battery and its definetly working...

i took the fuel filter out.. and started it a few times to see if any petrol would come out that pipe and none did

it also doesnt make the priming noise anymore... So at the moment no petrol seems to be getting to the front of the car ???

anyone have any suggestions on what i should try ? im worried when they fixed up the panels at the back of the they screwed something with the fuel lines maybe

[justin911]

also the fuel pump fuse is fine..

and on the white plastic thingy at the top of the fuel tank.. i swaped those 2 pipes over incase i had gotten them wrong.. but still nothing..

[tmc_2]

also the fuel pump fuse is fine..

and on the white plastic thingy at the top of the fuel tank.. i swaped those 2 pipes over incase i had gotten them wrong.. but still nothing..

Hey mate that difficult casue u checked all ligical points, maybe check the two electronic connect plugs on top of the fuel tank lid, If ur pump defifnetly works out of the car and its not ur fuse it seems some where there is a break in the electrics powering it. Id say if might be the connectors in the fuel tank lid.

Good luck

[justin911]

ive had a look and theres definetly not power coming from the electrical connector for the fuel pump.. i hooked the fuel pump upto the battery directly and she works like a charm

is there anyway easy / beginers way to diagnose the issue ? once the wires get back to the fusebox i got no idea ?

thanks

[justin911]

ive tested and theres no power for the fuel pump inbetween the blue thingy.. and the top connector (red thing in my pic) so it looks like the problem is in the fusebox or something ?

[mad082]

ive had a look and theres definetly not power coming from the electrical connector for the fuel pump.. i hooked the fuel pump upto the battery directly and she works like a charm

so you tried my idea and the pump works. good stuff.

i'll have a play around in the car and give you a call when i come up with another thing to try.

[justin911]

i did some fuel electrical tests that are mentioned in the workshop manual..

i think theres power going to the relay, but its having an issue connecting to pin #18 on the ecu i think.. i couldnt realy test it tho cause i was to scared id blow something up..

[justin911]

anyone no how many amps the fuel pump relay is for a r33 gtst

repco has a 20,30,40 etc etc.... not sure which one tho ????

[justin911]

the car starts now... but doesnt prime when u turn the key.. the pump only also goes on when u press accelerator.. when shes idling the pump turns off and then she dies.. u can accel quickly to save it tho..

anyone got any ideas besides some electrical thing ?

[justin911]

ive noticed just now on the pfc when the fp1 (fuel pump) light turns off.. the vct light also goes off.. the f/p light stays on the hole time though, if thats a clue for anyone.. ?

[justin911]

i grounded the negative wire coming off the fuel pump connector... car works perfectly now :P

[justin911]

well thanks to jazzar33 ive found the problem

the panel beaters decided it wasnt important to put the ballast thing back in the car.. so theres a connector just hanging there...turns it is important..

thanks again jazzar33