Quote:
Originally Posted by R2
Is this still working for you? I believe I am having the same issue; I plan to try zeroing the AF3 tables and give that a shot.
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That fix only works for rear o2 sensor issue. Just make sure you dont have exhaust leak or other issue.
People using rear o2 sensor as input for flex fuel kits disavle rear 02 sensor trims.
It can result in slightly less fuel economy when highway cruising.
Its never a good practice to start masking off stuff in the tune unless your 100% sure