Fuel Pump Issues Bocsh 040

[DriftSquad]

i had my car dynoed (R32 GTS-T) by dr. drift it made 146.9 rwkw but my air/fuel was to lean.

so I brought a new Bocsh 040 intake fuel pump off a SAU member. Iv installed the pump but now it sounds like there’s air in the lines.

It sounds like when u turn the hose on for the first time all the air getting pushed out of the hose.

Any ideas on what this could be?

Edited November 13, 2006 by DriftSquad

[kristafa]

i had my car dynoed (R32 GTS-T) by dr. drift it made 146.9 rwkw but my air/fuel was to lean.

so I brought a new Bocsh 040 intake fuel pump off a SAU member. Iv installed the pump but now it sounds like there’s air in the lines.

It sounds like when u turn the hose on for the first time all the air getting pushed out of the hose.

Any ideas on what this could be?

The 040 is much louder than the original gts-t fuel pump- you will notice it running from now on. Does your car still start/run and fix the lean issue?? If you haven't fitted an anti-syphon valve then you will get fuel feeding back to the pump when it's off, and possibly air in your lines. When you first put your car's key onto ignition, it will prime the fuel pump for a few seconds, this puts fuel upto the fuel rail.. if you have a leak in your fuel feed hose, you'll notice when you turn the car on that fuel will be pissing out of that area because the line is under pressure. i wouldn't worry about it unless there is an obvious sign of leakage or failure.

[skylinecouple]

Driftsquad,

Do yourself a favour and buy a genuine Nismo or Tomei pump specific to the car.I recently had the noisy pump and difficult starting problems that the Bosch pumps give you.Since getting the Nismo pump from Nengun for $387.00 delivered I can`t tell you how happy I am.Turn the key and it starts,first time every time.A little noisier than standard but only at idle.You will always have that priming noise by the way.

[Wheezy]

Nippon Denso 500hp pumps can be had for $250, direct fit and work a treat

EDIT: Petroject in melb have them but thats retail, if you can find one on the net on something like nengun etc youll get it for around $250

But the bosh pump should pose no problems if its installed correctly, I dont see why youd remove if it its working correctly, also have you taken it back to same to rre-tune it? maybe he could give you some suggestions

Jez

Edited November 13, 2006 by Wheezy

[GTS4-32]

ive got a bosch 040 fuel pump in my tank, and am having problems. The car wont start properly, always have to pump the gas until it kiks in, and the pump is very noisy at the start. Quites down after its warm but it is annoying. Im in need of a tune soon, ill have a talk to the tuner bout it and see what he rekons, but i think id be in search for a new pump. Im not happy with it.

[shnaped_second]

I had one of these in my 180sx and it worked fine, i just purchased another one to fit to my 34, dont think you should have a problem if fitted correctly

[DriftSquad]

so no 1 has had the same problem? car starts fine.

[R31Nismoid]

ive got a bosch 040 fuel pump in my tank, and am having problems. The car wont start properly, always have to pump the gas until it kiks in, and the pump is very noisy at the start. Quites down after its warm but it is annoying. Im in need of a tune soon, ill have a talk to the tuner bout it and see what he rekons, but i think id be in search for a new pump. Im not happy with it.

Next time turn your key to start, but dont kick it over for 5 seconds or so.

This will let the pump prime and you will find there wont be an issue if its all correctly setup

Also have a read:

http://www.skylinesaustralia.com/forums/in...showtopic=91993

I never had an issue in the 4 years ive been driving skylines with big bosch pumps, all have been installed and wired correctly, and ive never had a starting issue.