Hmm, right now I'm out of ideas. I will see if I can come up with anything else useful.Originally Posted by WanaDmxsub
Maybe try logging on an LS1, if you have access to one. That will tell whether the unit is faulty or if some incompatibility has crept into the software for duramax and other non-LS1 controllers.
Obviously you'd need to program a different set of LS1 PIDs.
Regards
Paul