Originally Posted by
Witt
I'm pretty convinced the problem is a missing "Cold Start Spark Retard - Alcohol" table that tells the PCM spark advance limit at cold start. There's probably also an associated bleed off cold start spark table that's probably causing the car to stick in cold start spark.
I have access to both of these in SCT and have them populated with gas values instead of the stock "0" ones and I don't have the issues you are describing.
If you zero out your afr vs ethanol table it may run proper spark with stoich changed to e85 and flex disabled but I haven't done that to test as I don't have one stuck in cold start spark.