the sensors pick up detonation and pulls timing in order to save the engine. 8 degrees of kr is likely due to not having a working maf. kr chips pistons too. why your goal is ZERO KR when tuned/modded.
for every degree of kr it pulls 2 degrees of timing, so 8ยบ kr takes away all your timing pretty much thats neg 16 degrees so if your set to 18 wot like most canned tunes, you were actually running on 2 degrees. and it will just fall on its face when that happens.
if you see kr, let off, save a piston.
