Quote:
Originally Posted by jamesm
if you're seeing huge swings in afr coming out of closed loop it's very likely to due a mismatch is fueling error between port and direct injection. or just bad maf scaling around 2.9-3.2v, as this area is pretty hard to nail down. i'd have to see a log or ask more questions to know for sure, but that would be my first guess.
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At this point it doesn't matter anymore. I will get a new, different soon.