Originally Posted by
JimmyS
It's been over a year since I sold my Sky so my help may not be as good as what you'll get from the others here but after peeking at your tune, I would suggest that you review the Gm Tech tunes posted above and review his cam tables. See how he's got 10 degrees in the Main (Warm) and Main (Cold) tables for intake in the low load regions and -6 degrees in the Main tables for exhaust in the low load regions? Try that on your cam tables and copy/paste the Main (Warm) table into the Main (Cold) AND into the Main (Warm) Main (Cold) tables under Catalyst Heating so that all of the Main tables are the same for intake with 10 degrees in the low load regions. Then do the exhaust tables making all 4 Mains the same as well with -6 degrees in the low load regions and see if that helps with your hunting issue.