Occasional KR @ medium RPMs?

[Garry]

OK, having the VE dialed in pretty decently I figure, I'd like some hint about the KR I keep seeing...

OK, over a 30 minute logg, I get about 20 more or less short spans of KR .. I get them all over the place, with 800 rpm and 8 to 16% TP transition, around 1600-2400, or 4400+ RPM ... doesn't seem to occur at WOT at all ... WB AFR sometimes looks fine around 14.63, other times it's going up to 16/17 ... on some occasions, I notice the timing advance going down rather rapid due to increased TP, while other times everything seems rather stable ...

Any idea? Check for some of the spikes in the attached logg ... (got the .pid-selection from the logg in the zip)

[ViolatorTA]

Another one of your threads to follow with another similar problem. Could be burst knock but I'm not sure. Mines tends to happen while in higher gears like 4th-5th at low rpm trying to hit cells around the same areas you mentioned.