Have an L83 truck with a turbo, circle D converter, & cam that Im trying to VVE tune before going on to tune the MAF but it's doing something weird. It will randomly in park or neutral act like it's under load, I'm watching the engine delivered torque and map rise as it does this, also it will drop below commanded idle rpm & open the throttle slightly more to compensate . When I kill it, as it's having the issue you can feel that it was physically under load. I just want to make sure the issue isn't related to OLSD before I start looking into possible transmission issues.