I had my vehicle on the dyno recently
I had a pull where the knock retard went crazy
Even though previously backing down the timing in that area.
I let off , back to idle for a few seconds and proceded with the pull again.
Only this time I ended up with .1 value in 1 cell.
This happened 2-3 times.
Each time It happened was after I shut the vehicle down to flash and make fuel corrections.
The last pull ended in 502 rwhp and 451 rwtq.
It's a ls2 by the way.
Is it possible that I was having false knock?
It's a hci ls2 m6 gto
If have logs to show if anyone is interested.