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Need Help Fuel Pump Relay Location

KEITHO

By KEITHO,
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KEITHO Apprentice

KEITHO

Posted
Posted

hay guy i have a r33 gtst sII 4 door. pretty sure ive found one of them its in the fuse box in the engine bay, the big blue raley marked FICD i think thats the one playing games. i have no idea were the other one is thers nothing in the boot just these 2 cumputer looking type things and nothing behind the front passinger kick panel just the computer thats it

any help would be well appreciated thanks

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tiberis Enthusiast

tiberis

Posted
Posted

now i understand that my car may be different from yours (S1 as opposed to S2)

but in the boot near the fuses in there, there was 1 relay, which i assumed to be the one for the fuel pump (why run wires all the way to the front and back again when they can just put the relay back there).

may haps just double check behind the lining in the boot for that relay? it was a blue one from memory and yeah, mounted right next to the fuses.

i'll have another look at my car tonight if nobody else can help you find it.

blk94r33 Mentor

blk94r33

Posted
Posted
now i understand that my car may be different from yours (S1 as opposed to S2)

but in the boot near the fuses in there, there was 1 relay, which i assumed to be the one for the fuel pump (why run wires all the way to the front and back again when they can just put the relay back there).

may haps just double check behind the lining in the boot for that relay? it was a blue one from memory and yeah, mounted right next to the fuses.

i'll have another look at my car tonight if nobody else can help you find it.

+1 You can test the relay by letting the pump prime (from off to on) then start the car and it should stay on. But teh relay mounted on the fuse box next to the battery IS the fuel pump one.

tiberis Enthusiast

tiberis

Posted
Posted

i don't mean to be rude, but you must be blind or something (something being someone has done some weird wiring in your car)

there is only 1 blue relay in the boot next to the fuses, as shown in this handy pic below:

DSC01229.JPG

i just took this photo like 5 mins ago, and verified by unplugging it that i didn't hear my fuel pump.

if you don't have this relay, i would say someone has done some weird stuff to your wiring and these forums can't help you that much.

KEITHO Apprentice

KEITHO

Posted
  • Author
Posted

im defanitly not blind mate. all the wiring looks untampered with and standered its just that my car is differant to coupes and s1's.the car did its no fuel thing again today wen i went to test starter after doing the clutch so i swoped out the relays in the box in the engine bay and still nothing then 5 mins later she starts up :Dpost-a313579-P1010386.JPG

P1010386.JPG

post-61115-1289473293_thumb.jpg

post-61115-1289473722_thumb.jpg

tiberis Enthusiast

tiberis

Posted
Posted

well i'll be... a 33 with the battery in the front...

seems odd that they would change it from the S1 sedan but weirder things have happened and speculating doesn't help you now.

that doesn't look like many relays so i imagine that there must be another set somewhere unless again, they did something weird in the S2 and reduced the amount of relays needed.

sorry, but i'm a bit out of ideas without poking around the car myself. hopefully someone with a S2 Sedan can help you more.

KEITHO Apprentice

KEITHO

Posted
  • Author
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ok so i think ive found the fuel pump relay thort there were 2 ? so if you un plug the blue one the pump doesn't prime plug it in and she primes up. so i swopped out the relay with a good one and it still does its random no fuel thing still, today the pump has just stopped all together o and its a new 040 by the way. i think it may be time to run a new wire straight from the battery, i have no idea about wiring relays though and were to get the trigger from im shore theres something on the forum?post-a313800-P1010387.JPG

post-61115-1289641272_thumb.jpg

KEITHO Apprentice

KEITHO

Posted
  • Author
Posted

a little more info on this wierd situation just remembered woops when the car was taken off the rd a year ago on its last drive to work before i had to get it towed the head lights dimmed and it was running a little off, felt like it was of tune almost i just ussumed it was my coilpacks on there way out and today wen it was running then conked out the dash lights stayed on for about 5 10 seconds after i turned the key to off :)

little on the car its fairly stock cat back, gutted cat, pot filter and the stock comp but it has an impule badge on it i think my car is one of those impule skylines with half the shit missing probably pilfered by the import yard its still got the dash and bumper

things ive replaced coil packs 040 pump with stock wiring couple other things to but shouldnt affect the way it runs clutch and radiator

KEITHO Apprentice

KEITHO

Posted
  • Author
Posted

ok so if you hold the raley in your hand and crank the car a few times the relay is triggering fine but still no prime sometimes it will prime for a couple seconds but thats it enough for the engine to fire about twice

KEITHO Apprentice

KEITHO

Posted
  • Author
Posted
I don't reckon the relay is your issue at all.

How confident are you with the 040 installation? Have you checked to see how much voltage the pump is receiving?

just checked then and theres nothing at all coming through to the brown plug with the 2 fat wires and i pulled 11.7 of 2 of the skinny wires 3 wire plug

KEITHO Apprentice

KEITHO

Posted
  • Author
Posted
the plug with the two fatter wires is definitely the pump power connection.

when you tested it for voltage the ignition is switched to ON yeah?

you checked the fuse?

yep had the little sis turning the ign for me and the fuse is fine theres only one fuse ye the one in the ingine bay fuse box

Luciano Veteran

Luciano

Posted
Posted

yep only one fuse mate - i know the coupes have this particular fuse in the boot (as i used to own one). I'd check my sedan for you right now to see which fuse, but i broke my foot last weekend/am on crutches :P so I cant move a lot atm.

Other than pulling out the relays for testing and installing the 040, have you modified any other wiring / electrics since the car was last running fine?

Luciano Veteran

Luciano

Posted
Posted

cheers, it does suck - not being able to drive especially - left foot injured, no way i can kick the clutch pedal! lol

anyhow - maybe try testing that there is power at the fp fuse with the ignition at the on position. Cancel everything out one at a time. Somethings definitely stopping power to the pump

KEITHO Apprentice

KEITHO

Posted
  • Author
Posted

yes mate and ive just figered it out and went on my first drive in a year yai. all along i was thinking i had bad connections in my mind. went outside and she fired up so i left it running cos i wonted to prime the cooling system whilst i was standing in front of the car i noticed a electrical type spark reflecting of the cooler pipe it was the red thing for the positive that holds all your positive wiring and the plugs were all corroded and falling apart from the top you would have never niticed because of the pretty red cover i feel like a dosh bag now huhu. so i think ill head down to the auto store tomorow get all the stuff to make up new main wires off the batt just to be shore

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