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Discussion Starter · #1 ·
While cruising at highway speeds and having to come to a stop the cars idle goes extremely low and acts like it wants to stall. I recently replaced the aftermarket intake with the OEM one. This is not a pzev engine. Thinking this may be the culprit. It helped with the erratic idling. But this problem still remains. I have checked all over for vacuum leaks and can not find any. Car idles fine if parked and not moving. I have also replaced the throttle body as well.
 

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Discussion Starter · #3 ·
Just an update to anyone who can help. I just also replaced the pcv valve and hose. Replaced the oil separator gasket and intake gaskets. The problem still persists but now it seems like it only does it while the a/c is on.
 
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