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Old 02-27-2015, 11:01 AM   #127
Koa
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Join Date: Oct 2014
Drives: '02 RA Bugeye | '15 FRS
Location: Seattle, WA
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Garage
Quote:
Originally Posted by steve99 View Post
yes exhaust leaks at header cause 02 reading to be in correct high fuel trims and incorrect afr results if it gous lean it will cause knock and iam to drop.
this leak was at the CBE, where midpipe met axleback. I don't know if I had a bad batch of gas, or what... but IAM no longer drops and tip in knock is significantly reduced.
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