Yes you are right, I missed the Coolant spark table. That would adjust spark uniformly across a RPM for a load range. Interesting that it will add 10 deg at the highest load in very cold weather. That seems like a lot. The mixture at that temp must burn so slowly that they can throw a 10 deg advance at it with no problem. I still don't see anything that looks like IAT? I like that the tuner was using the PE spark table to add for richer AFR. That seems like a more refined way to do it. Except I don't understand how the ECU could use that table with a narrowband O2 sensor? The table has precise AFR ranges.