Is it ok to change Idle speed if car is dyno tuned and chipped???


Active Member
Mar 30, 2005
Southern California
My car is already dynotuned and chipped with a diablosport chip...the tunner set the idle at 900RPM's but I would like to have it a little lower to hear the cam some more...what is a good idle speed? also can the TSP voltage be changed without affecting the tune???
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Founding Member
Sep 26, 2001
Baton Rouge, LA
There are a few different ways of setting up the idle in a tune. I'd get ahold of your tuner and ask his opinion or just try it and remember how to get back to where you were after the change.

Pull the negative battery cable and hold the brake a few seconds to clear the ISC learning.

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