Somehow the ecm is cutting out about 15 deg of timing at cold temps in open loop. But my base coolant advance correction vs coolant table is stock AUJP. What other tables would affect this?

Any thoughts?

 

There's the "Spark Advance Base Temp. Correction Table Bias" that will offset the spark advance, so that the table "Spark Advance Temp. Correction vs. Load vs. Temp" gets cancelled.

There's also a "Spark Advance Cold Disable Temp." that should disable the use of the two items mentioned above.

I don't know what "Spark Retard Hot Disable Temp." does.

I don't think 8D has any other "catalyst heating" algorithms in it, but I could be mistaken.