Rb20 Stalling

[JordansR32]

I got a problem with my rb20 when im changing down gears say from 3rd to 2nd in the space of time when my foot in on the clutch the car sometimes stalls, its like it doesnt catch the idle when its about 1000rpm between the gear change.

If someone could shed some light on it that would be great

[ZRBE]

Probably your Blow off valve, is it venting to atmosphere?

I had same problem, bought a Turbosmart Plumback and fixed the problem.

Then again, could be something different. Usually happened to me when slowing down to a complete stop anything above 70kms

Edited June 14, 2013 by Zrobe

[JordansR32]

Its only just started doing never had this trouble i have a BOV that is plumbed back but i have it blocked off. It only does it coming to a stop but never going quick.

[ZRBE]

Hmm.. Well I wouldn't have a clue. Haha, sorry but wasn't aware that you already had one plumed back..

Sorry dude, I'm sure someone on here will help you out though.

[Kane_R32]

i have a BOV that is plumbed back but i have it blocked off

unblock it so its running exactly like stock and see if it changes things...

[JordansR32]

Tried unblocking the BOV but didnt do anything damit!

[500hp]

Most Likly a faulty iac valve .

[driftnick13]

mine was doing the same thing and it ended up being the U shape hose that goes from 1 cam cover to the other was split, would check all the breather hoses and vacuum lines for splits.

[Tabs]

I had the same prob with a gold gtst I brought with a top mount to4e but it would do it more often that your issue everytime stopping at the lights!!, tried \ by passed everything!! :

coils ,iac valve , vac leaks, fuel issues, ecu , pcv valve, no bov , new bov, timing , even setting idle to 1500rpm, air flow meter , checked cam belt ,correcting the tps helped ,

worked out it was : "reverberation " where the air flow meter was too close to the turbo I spaced it out with coiled induction pipe and problem solved I was planning on mounting air flow meter and pod where the stock cooler was for cold air intake and help with stalling issue , I didn't believe it could be the issue but it was.

my gtr with gt35 does it a lil bit but hardly ever, iac doesn't work would help mine map sensor would also fix it

if above is no the issue try check for vac leaks again and block off the pcv valve and the other pipe going to before the turbo, vent rockers to atmosphere, unplug idle valve and set idle manually to 1000-1200rpm to rule out a few possible faulty parts \ issues