Ignition anomaly H/C 2010 camaro
Car came in for a tune and I found this ignition anomaly in the original tune when doing base pulls on the dyno. After making my own the problem has not gone away nor can I find a table that would change timing like this. Anyone have any ideas on what might be causing this? I do heads/cam LS cars a lot but have never had one oscillate timing in this manner.
It seems to always happen within 2000-3000rpm and .68-.72g/cyl
dyno run from original tune
http://img638.imageshack.us/img638/9...ndynopull2.jpg
Dyno run from my tune
http://img341.imageshack.us/img341/2...ondynopull.jpg
Street pull on my tune
http://img859.imageshack.us/img859/4...nstreetpul.jpg