I have started tuning a spare ecu with tuner pro. Just put a soft launch control on there. It worked great for the first run. Then cycled the key and had no start no communication. Boot mode and reflashed stock tune. Works good. I then validate my checksums with Ultimo program. I also used the checksum function with mpps. Both say ok. I then bench flash the tune back on. And no start again. I've attempted to use me7check and me7sum programs but my computer keeps giving me access denied errors in cmd prompt. Some security issue I am still trying to figure out.

 If anyone is interested in looking it over or tossing it through their machine it would be much appreciated!

You can't learn if you don't ask questions!