Another Idle Thread

[33SOM]

My 33 idles like a WRX but is perfectly fine once the revs are up.

It isnt plugs/ coils etc. Ive done a search but with no help.

What could be the problem?

Thanks in advance

Edit: It has hapened before but it just disapeared. I recently changed plenums back to a standard one and now its doing it again but with no sign of leaving.

Thanks again

Edited November 9, 2005 by 33SOM

[TommO]

Have you cleaned your AFM?

Hooked it up to a Nissan consult port and seen if anything is reporting an error?

[33SOM]

Forgot to mention Ive got a new Z32 AFM and a power fc

Its only hapened since the plenum change. With the old plenum it never used the aac/ air reg etc and idled good. Ive tried disconecting these with no change

[33SOM]

Also if i give the accelerator a little bid of gas just off idle the revs hp up and down constantly between 1000-2000rpm.

My car is so reliable

[Craved]

could be : O2 sensor, blocked injector.

what makes you think its not the coil packs or plugs?

mine idle like that ... i had a bent valve .. get a comp test done.

[MerlinTheHapyPig]

check idle rpm settings in power fc maybe

[33SOM]

New plugs and I checked coils with another car. I initialised the power fc with no change

[grim32]

vacume isnt leaking anywhere?

[33SOM]

vacume isnt leaking anywhere?

<{POST_SNAPBACK}>

That is one thing Im thinking it could be. there sounds like air leaking just below the aac but from what I can see there isnt. I used new hoses aswell.

I unpluged a vaccum hose to see if the idle would change and it didnt. Does that mean anything??

Thanks

[grim32]

might do.... not 100% sure but, my car had same symptoms with a vucome line off, id just check em all again to make sure. you can always spray some wd40 on any areas that look sus and see if it changes the idol, if it does you have found your leak.

[33SOM]

wd40 didnt find anything

I hate missin nissans

[The Mafia]

do you have a Vent to atmosphere BOV?

If you do, then there is your problem.

[shanef]

^ Exatly what i was going to say.

I've got a GFB Stealth FX and when i open it up to vent to atmo it idles like a c***.

Try putting the stocker back on if u have an aftermarket one.

[33SOM]

Ive been using an atmo bov for about 5 years now without a single problem. Its a HKS ssq.