At the same time, I wonder if there is anyone on this forum who would be capable of creating a stock ECU emulator that would run to the test port for testing. You could then pull the CEL (or have MS activate it as a warning/shift light) and smog would plug into the dummy, see an all clear, and pass you as is. More work up front for a sure thing in the end. I just don't know if the testers just read sert values or if they communicate with the ECU more. Either way, there is no current way to avoid the MS CEL save the way Terry stated above. (Glad I have a spare injector rail harness!)