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Old 10-12-2009, 09:11 PM   #6
Missing Big Red
ssmike's Avatar
Drives: 2006 Corvette DSOM, '13 Equinox CRT
Join Date: Jul 2009
Location: Buffalo, NY
Posts: 6,619
Originally Posted by jimpfromwv View Post
I have a friend the works at the local dealership and he flashed my spare ECM with the stock tune and I can't believe how much better my car runs. No more rough idle, much better throttle response, no more HERKY JERKYS, and this thing runs a hell of a lot better than it ever did with the factory ECU. There has to be an updated flash that no one is talking about.
How did you get a spare ECM and how much did it cost? Can GM detect that you change the ECM?
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