Hello again guys,

 

Ahhhhhhh a Sunday and another problem with the Z !!!!!!

The car was running perfect until the fuel pump started whining and then all sorts of funny running, then cut out and wouldnt start for about 1 hour (very inconvenient) as i was stuck on a duel carrige way doh ! Then on the way home finew one mintue and then the pump starts whining and again funny running

I was thinking that it my be from fuel starvation but any pointers and how much is a fuel pump and is it easy to replace myself ?

thanks again for reading.

really easy to change, remove your spare wheel and you will see the top of the sender which you undo with about 8 nuts and it's there :)

 

http://www.300zx.lv/catalog/?gr=B&sec=172&pic=D01 p/n 17042 in the top right :)

 

Vijay

thanks dude how you doin anyway ?

I've got a pump if you need it! I'm only down the road from where you are!

I'm alright, missing my Z big time, can't wait to get it back!!!!!!!!!!!!!!!!!!!!!!!!!!

I know the feeling mate, by the way can i change the fuel pump with a full tank of petrol ?

don't see why not, it removes from the top of the tank :) WD40 the bolts the night before you do it as 1 of mine sheared :(

Cool mate will let you know how i get on.

 

thanks

Started it up this morning and fine ? ?!? !? !?! ?

The only thing i can think of is that i put some slick 50 fuel system treatment in it about 3 days ago could that be causing it ?? maybe.

Just as a precaution should i go for a walbro fuel pump they are only £80 or get a 2nd hand one which was very kindly offered ? ?

Stick with the standard as the fuel pump controller is designed for that pump and not Walbro. The Walbro may not like the low voltage at times. BTW, if you problem returns, the controller would be next best place to start looking.

damn ive already ordered a walbro doh, do you think it will cause any real issues ?

Might be OK. The Nissan fuel pump controller drops the voltage to the pump under certain circumstances. If your pump isn't designed to run at the lower voltage it could cause damage to the windings / brushes. Then again, because its submersed in fuel, it may not be a problem. May be someone who knows a bit more about motors could comment.

May just be a case of modifying the fuel pump controller or bypassing it. Don't run your pump straight off the ignition though as there is a safety feature where if the motor is not running, the fuel pump stops. It stops fuel geting pumped everywhere in case of a leak / fire.

cool thanks guys, im fitting it tonight so hopefully it fixes my problems (and if it doesnt i can always have a cigarette whilst doing the job (BOOM) :wack:

.....

The only thing i can think of is that i put some slick 50 fuel system treatment in it about 3 days ago could that be causing it .....

 

i'd say yes thats your smoking gun...nothing but a con that stuff...been covered on the forum a fair few times

Thanks guys for all your help im fed up with this car !!!!!!!!!!!!

Dont be fed up - get even and fix it :)

Is it still not going? What have you done? New pump?

Its going now was up till 12pm last night, New walbro fuel pump and fuel filter works a treat although i have cuts on my hands. All i have to do know is sort out my slightly inconsistant boost issue then im all done.

 

thanks for asking

Great to hear and good luck

cheers mate

So have you had any problems with the Walbro pump?