That's not entirely true though, because the PE table changes the Commanded AFR when it is enabled. I was under the impression that the PCM would use that commanded AFR to calculate how much enrichment to provide given PE mode is enabled. Am I wrong in saying that?
Another note on over richening the mixture possibly causing knock:
If you have a given air boost level, and you pump a lot of extra gas into the already hot cylinder, wouldn't the cylinder compression pressure spike possibly too high, thus causing knock? That's a point that someone made on the forums somewhere else.
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