Hi,
I've noticed that my idle is unstable on my 2001 integra gsr, its worse on hotter days. When i rev the engine to 2000rpm and let go it goes down to like 200 rpm then it re-stabilizes. Someone told me that it might be the iac valve, others say that it might be a vacum leak somewhere. Does this affect the performance of the car once your off idle?
Any help would be appreciated,
Thanks