False Knock?

[RATEL]

I am trying to figure out why I have some knock retard in this run. At the beginning of the log, there is ~5* of KR, but at the end of the log, where there is a similar run, there is none. There were a few small logs before this one, that showed no KR. Is this real?

[Mr.z0611]

Try zeroing out this table [ECM] 12636

[RATEL]

Thanks for the feedback. That table is already zeroed.

[Mr.z0611]

Sorry my bad I thought I copied this one [ECM] 12634

[RATEL]

Is it real knock?

[RATEL]

Two other logs with the same tune. These do not indicate the same knock retard.

[RATEL]

I will lower the timing and test again. Thanks again for your help.

[blindsquirrel]

Only lowering the timing, or only raising the octane, doing them separately, won't give you a definitive answer to 'is this real knock or false knock'.

[RATEL]

I pulled about 1 degree in my high-octane table at the upper air mass level and a half a degree out of my PE table. The knock retard went away.