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Ok, wtf is going on? I replaced the wideband sensor with a new bosch replacement, old one that came out was covered in black soot. Calibrated it in open air with a reading of 22.1afr.
Idle is still lean, I have intermittent lean light throttle. RICH AS HELL in boost now, 9:1-10.5:1.
Oh, lord, sounds like a boost leak now.
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