Can a tune cause the idle to be higher than normal (assuming around 600rpm or so). I am currently bouncing between 1k and 1200rpm with most of the time around 1k. Also, when given little throttle to about 2k-2300rpm it takes about 7 secs or so to return to idle (1k). If it helps there don't appear to be any leaks.

 

Did you do a BLT?

 

Is it a rythmic 'hunting' of idle dips - revs... dips revs...?

If so - that is a vacuum leak.

 

No idle dips.. Idle raise yes but then it returns to the its normal idle of 1k


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I had the same issue with a tune.
When I rolled up to a stop with the clutch pressed in it would bounce up and down a few times then be at a little higher then normal RPM.
When I changed to a different tune it went away but I would not rule out getting a smoke test done just to be safe.

 

That's exactly what it does.. Testing will be done within the next few days


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had the same issue, smoke test and there was leak near my BOV

 

Sounds like a BOV issue to me.

 

Did you check the FPR hose?

 

Had the same issue being stock I took it to the dealer they said the throttle had carbon build up they cleaned it and my car was like new again they also reflashed my ecu