Randomly Stalling At Idle

[mystery_kid]

Hey

so today my car just randomly started stalling at idle

happened once in the morning near work, waiting at lights it just stalled, it's never done this before

later in the day i went for a drive out to a job site and it's gotten a bit more frequent. it will idle then drop down then bounce back up drop down, bounce back up and usually stall doesn't happen all the time, but it's getting more frequent

my first thought is vacuum leak, i just replaced the clamp around the hose that goes into the IAC valve because it was pretty lose but that hasn't stopped it

last time i had a vacuum leak it would always happen, every time it would go to idle it would drop down then idle high etc, but didn't stall

anyone got any ideas?

ps. i just replaced the exhaust manifold gasket less than 2 weeks ago, if this helps any

pps. the car when it's cold will stutter and idle bounce after i've driven it for a little bit down the road and then stop, it's stuggles to idle but a tap of the accelerator and it is fine

Edited September 8, 2009 by mystery_kid

[GODZ1LLA]

Try cleaning the icv....

[mosquitocoils]

+1

see my sig for guide for rb25det. from memory i think its similar to rb20 but dont quote me on it

Edited September 8, 2009 by mosquitocoils

[mystery_kid]

yeah not so sure about IACV

it seems heat related which is making me lean towards the AFM, both days now i've been able to drive to work 100% perfectly until i get there then it does it

then driving the car during the day in the heat it doesn't last long before it starts doing it