Fuel Pump Relay in r32 rb20det - help *urgent*

[hellrazorette]

Posted for 46n2..

Does anyone know where the relay for the fuel pump is in an R32?!?!

Wiring diagram shows that between the ECU and fuel pump there is a relay and I need to know where this is asap, I think its in the fuse box, any help really appreciated.

Thanks guys...

[The Dan]

I'll find it for ya, hang on a sec

[The Dan]

OK, try in your boot between your tail lights. You will probably need a screwdriver to remove the interior panels but it should be in there. I can't find it anywhere else.

[R31 POWER]

it's right next to the ecu behind the kick panal,the 2 green relays are them.

[The Dan]

sweet, I've been frantically looking for it everywhere. Everything I have read said it was between the ECU and the IGN. But I couldn't find any locations. The only other relay I knew of was in the boot there. Sorry to steer you astray mate.

[blind_elk]

One of those relays is the fuel pump, the other is the coil packs

[hellrazorette]

thanks guys i'll go digging now

i'll keep u posted

46n2

[hellrazorette]

Found them.

Anyone know which one is which?

Also where i could get a replacement this weekend if i need one?

46n2

[Guest two.06l]

Found them.

Anyone know which one is which?

Also where i could get a replacement this weekend if i need one?

46n2

your fuel pump relay is in the boot!

[hellrazorette]

oooooooooook guess we will have to pull the boot apart to have a look.. love that conflicting info :

[hellrazorette]

pretty certain it' the one in the boot because i touched it while the car was running and it started to jump it's idle between 300rpm and 2000 rpm hOORAY!

unplugged the relay and the terminals are corroded, so time to get a new relay.

w000t

46n2

[blind_elk]

two.06l,

I've recently done a full re-wire installation of a Wolf 3D into my R32 GTS4, utilising the factory relays. I think I know where the fuel pump relay is. I think you will find that the "relay" in the boot is the "fuel pump control modulator" (but I can't swear by that).

[Guest two.06l]

pretty certain it' the one in the boot because i touched it while the car was running and it started to jump it's idle between 300rpm and 2000 rpm hOORAY!

 

unplugged the relay and the terminals are corroded, so time to get a new relay.

 

w000t

 

46n2

Good work, and good luck with the repair

[hellrazorette]

thanks two.06l

Blind Elk: do u know which of the 2 relays in the kick panel are which? just for future reference in case swapping out this relay doesn't fix the issue...

Going down to the servo to see if i can get a replacement today

46n2

[blind_elk]

Unfortunately, I wasn't smart enough to label them, or make any sort of written record as to which is which.

I think you need to get the genuine Nissan article, because they use a non-standard pin arrangement (well, they are certainly different to the Bosch types). Unless you are prepared to unpick the connectors from the plug to connect onto a standard Bosch type.

[hellrazorette]

anyone know off the top of their heads how many amps the relay is (fuel pump control modulator)???

[blind_elk]

I don't believe the FPCM is a relay - the workshop manual shows it as basically a transistor, presumably designed to maintain voltage at the pump.

[hellrazorette]

also, the relay is green, and the other green relays in the car seem to to have the same numbers moulded into the casing.

ie:

top looks like this:

3 o-o/ o-o 5

1 o-nnn-o 2 (the n's are the closest i could represent the image )

46n2

[hellrazorette]

ahh ok...so what am i holding? the green cased thing i'm holding has the above pic on it :confused:

also what page of the w'shop manual are you on? I'm finding it pretty hard to read through it as an electronic copy

[blind_elk]

I'm guessing both relays from behind the ECU are the same PartNo - they are just a relay after all.

Ive been working from the JPNZ manual - the engine wiring diagram is on page EN-289, if that's any help