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spark advance between WOT shifts

EFI Tuning Fundamentals

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during WOT, between shifts the spark advances 8°. after shifting into the next gear the ecu senses knock. what can be done to fix this issue? Set up is a ls3 turbo t56, hp tuners.

Can you post a datalog?

As Raymond has said, a log and perhaps a copy of your calibration will be helpful here.