KR Question PLEASE HELP!!
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Joined: Oct 2003
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KR Question PLEASE HELP!! I had some KR so I took out 10* across the entire High and LOW Octane Tables. I did a log and it seemed to get worse. The highest I saw was 17*KR that was at 43% TPS, 3035 RPM, -1.8 B1 -.8 B2 LTFT, and Timing was at 12.5. On the same log I had spots with >1* KR at 27* Timing, and 85-100% TPS. There is knock all over and seems to be completely random and nothing helps it. The highest spots are in the lower rpms (>4000) and tps%. I have less KR at WOT with higher timing then when I am accelerating with less timing. I have a 98 TA M6 with a G5X2 cam with Pacesetter LT's, can the cam be causing false knock all over the place and completely random? How can I get rid of it? It doesn't show up only at a certain spot, when I shift hard or soft no difference, I can make my Y-pipe hit the underbody and nothing. It seems completely random but there is a lot of it, there is no trend I can find. I am running 94 octane by the way and my O2's at WOT are averaging 920's, LTFTs are slightly negative. PLEASE PLEASE HELP ME!!!
Thanks Matt
Thanks Matt
Valvetrain mechanical noise can produce false knock
detect, that's worth checking out. The sum of timing
+ KR pull doesn't seem out-of-line with my plain timing
numbers. If there is looseness / play in the valvetrain
this will be engine-synchronous noise the knock
detector may not blank.
detect, that's worth checking out. The sum of timing
+ KR pull doesn't seem out-of-line with my plain timing
numbers. If there is looseness / play in the valvetrain
this will be engine-synchronous noise the knock
detector may not blank.
