I have a wierd intermittant KR problem just as the motor enters boost, 105-115 kpa in the 3600-4200 rpm range. It is not there all the time and I have a perfect AFR and a commanded timing of 18 degrees. I hget it under full or part throttle, doesn't matter, it still shows up "sometimes". Full boost from 115 KPA up to 230 KPA will have no knock but my timing will retard a couple degrees. I think the retard my be due to the KR I am seeing at 105 kpa??
I set the desired timing table to 18 degrees timing, The high table to 18, and the low table to 17 degrees for WOT. Should I have the high and low octane tables the same??
Any insight? Is there a possibility I have my software setup incorrect? Can I be getting burst knock with a custom SD no MAF tune??