Quote:
Originally Posted by willtangclan
Yes i reflashed it back to the R4 tune where it was running better without the ping. I'm pretty positive it was the correct tune chosen because the only thing about this tune was the ping, other then that the car ran amazing. Much better then previous tune
The ping would come in around the 800-1700 rpm range.
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From the rpm ranges you stated, it sounds like tip-in knock. I've seen it on a few 370's even with stock tune. Does it knock under load too?