R32 Gtr Standard Fuel Pump Prime Noise

[Godzilla32]

Hey guys i just want to find out from you guys who have the same car (and only you please) with the standard pump, how long it primes for in the morning or after many hours of not running. If you don't start the engine when the ignition switch is turned to 'ON' how long do you hear the pump prime for? Is it very loud? And lastly do you ever hear the same prime noise for a very short time (1 second) during prolonged idling? ... memory this too is only after the first start in the morning or after many hours as previously mentioned.

Many thanks,

Deren

[cowie165]

Deren mine does the same as yours. Primes only after a few hours of non-use, for around 3-6sec. Loud enough to notice it, if that makes sense.

[Godzilla32]

Yeah cheers for that mate. How about the prime during idle?

BTW just realised your after a nissan boot badge, i dont think i will be using mine anymore so its yours if you take me off your bad trades lol!

Edited October 18, 2006 by Godzilla32

[cowie165]

lol, pm sent

[Trex101]

Hey guys i just want to find out from you guys who have the same car (and only you please) with the standard pump, how long it primes for in the morning or after many hours of not running. If you don't start the engine when the ignition switch is turned to 'ON' how long do you hear the pump prime for? Is it very loud? And lastly do you ever hear the same prime noise for a very short time (1 second) during prolonged idling? ... memory this too is only after the first start in the morning or after many hours as previously mentioned.

Many thanks,

Deren

The sound came on due to lack of lubrication in the fuel pump, you can either put Redline SI-1 in your petrol tank or buy some ashless motorbike 2T, added 50-100ml and it will do the trick.

Edited October 20, 2006 by Trex101

[cowie165]

Sounds interesting trex, cheers

I don't think I've ever heard the pump during idling.

...but my idle is around 1200rpm so I don't hear much of anything...

[Godzilla32]

Ever had your throttles apart mark?

[cowie165]

Not on the GTR. I just cleaned the TB on my Mazda's KG 2.5L V6 and it ran like crap quite some time... next time I wont be lazy and I'll take the TB off rather than just spray all that carby cleaner down its neck

Is it a tough job? I'm sorry about dragging things off-topic, but my plan is to clean the IAC, clean the TB and then if it is still high I'll adjust the trim pot on the ECU. I'm pretty sure it had an aftermarket ECU removed prior to export, so the problem could be there...?

[Godzilla32]

Dont clean the throttle bodies, It wont make it any lower, only higher, the more you clean from around the butterflies the more air gets thru when they are supposed to be closed - Hence high idle. Prolly the idle control valve getting stuck. Good place to start anyhow

[Fitzpatrick Speed Works]

you might find this is the attessa pump not the fuel pump!!

[cowie165]

Dont clean the throttle bodies, It wont make it any lower, only higher, the more you clean from around the butterflies the more air gets thru when they are supposed to be closed - Hence high idle. Prolly the idle control valve getting stuck. Good place to start anyhow

Very good point dude! Cheers

[soul-reaver]

Yes the fuel pump does prime approximately 3-10sec depending on how long I've left the car off.

It does prime during idle at times and also if you leave the key at on position for a while.

[Godzilla32]

Thanks guys. Sounds like i have no problem then

Its not the attesa pump. There would be no need for it to operate at idle. Only works when you are locking up the clutch packs in the transfer case to provide front torque.