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#24: 02-09-2010, 09:43 AM
 John M
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Title: Burning Monkey
Location: Milledgeville, GA
Car: Formerly 05 LGT w/ FP Green
Posts: 2,620
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Originally Posted by timmafod View Post
With respect to being at stoich under boost, with the factory tune my car did remain closed loop/14.7AFR until around 3-4psi.
That's what I think did most of the damage on my car. Not the stock tune but once I cranked the boost it exacerbated the situation. I applied the OL/CL fix long ago but the damage had already been done ever since the first turbo went in 2005.

I continued running the same MBC after my turbo/FMIC swap and logs showed I never got into positive pressure while still in closed loop.