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Old 08-10-2013, 03:01 PM   #67
Studly Adventurer
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Joined: Jul 2010
Location: Bay Area
Oddometer: 727
Fault Codes???

Originally Posted by kk3an View Post
I also had a very pronounced detonation / pre-detonation issue caused by throttle blips with my '13 GSA.

Removed the exhaust flap and the problem went away 100%. No throttle body sync, no nothing - just replaced the exhaust flap with a straight section of pipe and the issue was gone.


I'm about to do the flap delete. However, I'm wondering if you had any fault code issues when you did yours?

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