cxs4887
TYF Newbie
- Joined
- Feb 4, 2014
- Posts
- 29
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gonna start a new thread on this, still cant pass emissions because of this egr valve im assuming the whipple charger tuner is changing the open/close performance and throwing the code. anyone know a way to get it to change when it opens and closes with or without getting a custom tune ? on my 2001 yukon. quick rundown its the 5.3 supercharged about 5-6 psi whipple tune and piggy back computer
