67SS509
March 16th, 2013, 01:49 PM
Recently did a search to find out if the E38 ECM octane scaler resets on a fuel refill like the LS1B PCM. I know it won't reset from a reflash, so I logged a fillup on my 2012 Chevy truck today. It reset to .000 from .226 with a fillup from near empty. After a few short blasts and couple spikes of 1-3 degrees KR it went back to .322. I also have rapid decay rates on the KR. This was with 93 octane fuel so I doubt there was any real KR, just some from burst knock etc. These E38's are hard to make maintain peak spark.