Quote:
Originally Posted by ctrlz
Is the tuner road testing the car? it sounds like you have a vacuum leak that is coming and going as parts shift around. I would guess intake, as there have been multiple reports of leaks around MSD intakes here.
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Yes, I actually rode around with him while he was tuning. He would get it straightened out, and it's almost like it relearns the problem. Like I said, I did check for leaks around the intake manifold and CAI with starting fluid and got no fluctuation in idle. I would think if it had a vacuum leak it would be constant.