the problem is the idle go up and down sometime when the engine is hot and got miss fire when boosting...i think its the iac valve ? i have changed the injector 1 month ago the engine is stock thx for help me
Did you sort it out?
Could be the IAC, but that's a pain to fix - try undoing the idle screw and spraying carbie cleaner inside it; that should clean it up a bit without having to take it off.
Could also be an air leak somewhere.
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