Fuel pump dead???

[Tragic]

Im a bit of a newb to the skylines i only got mine about 3 weeks ago. Anyway on friday while driving i noticed my car was loosing power, i would notice it would lose power but then i could put my foot down again and it was fine. Later that day i was driving along when my engine cut out and wouldn't start again. I disconnected one of the fuel lines and turned the ignition to pos #3 to prime the fuel pump but no fuel came out the line, cranked engine over still no fuel.

Got her towed home and i have just checked the fuel pump wiring. On the pump are 5 wires going though 2 clips i put a multi meter on them and turned ignition to pos #3

Grey Clip

Black Wire - Earthed (confirmed)

Green? Wire - 12v

Gray w/red strip - 8v

Brown Clip

Two wires can't remember the colour but both showed zero volts.

Can anyone confirm for me what each of these wires do? And with confirmed power through the grey clip can i conclude that my fuel pump has died?

Cheers for any help guys

[sherlock_nzl]

Daigram of fuel pump and relay, hasnt got colours but should be easy enough to work out whats wrong from it.

Cheers

[Craved]

the grey clip sounds like your fuel guage sender unit.. with the grey w/red strip being the response wire which will vary with fuel lvl!

the brown clip sounds like your fuel pump wire... since the R33's use the ECU to vary the current on idle means that your pump is not gettion power from the ECU .. check that PIN 18 is properl;y connected by removeing the kick panel and unplugging then reinserting the plug ....

the fuel relay in the rear fuse panel may also be blown .. check those too and have them tested properly.. im no where near my line so i can check which one it is for you.. shouldn't be hard to diagnose this, and i doubt that it would be the pump causing this situation!

Hope this helps

CT

[Slide]

if you need a 2nd hand fuel pump i got one pm me

[Tragic]

Ok well i went through the boot and found the fuel pump relay. It looks ok but im going to buy another one today and chuck it in. Fingers crossed that that will fix it

I pulled the ECU harness off in the kick panel but i'll be buggered if i can match pins to the wiring diagram that sherlock_nzl posted

[Tragic]

Chucked a new fuel relay in just to see if that was the problem but it didn't make a difference.

I was just going to get the relay tested but when i range up the parts place they said they have some which are classified as old stock so i could have one for $20

Bargain So even thou it wasn't the problem at least i have one spare now

Can anyone recommend anything else before i get it towed to a mechanic...

[Craved]

see if you are getting power to the relay .. if none is coming through then i can rule it out entirely..

[Tragic]

Ok update, im a idiot! Spoke to my mechanic friend who told me a fact i should have known. When turning the ignition on it only supplies power to the pump for approx 3 seconds. So by the time i got to the back of the car to check the multi meter the power was off.

I checked it again and there is power getting to the pump so its definatly a faulty pump Time for a new pump... *sigh*

[Craved]

when you get the pump out .. try hooking it directly to power tomake sure