Hello,
I have a 2006 6.0 in a 69 c10, the pcm is flashed to a 2003 now with cos 03150003. and matching pedal and tac module
The truck runs fine, still a little rich but that will be changed.
As soon as i go over about 60% throttle, a maf code gets set, truck goes to an idle and i lose control over the throttle.
Once i delete the code, the throttle works again.
Im not running a MAF or o2 sensors, so open loop.
I have the proper map sensor etc.
Please have a look at the attached tune, i must have missed something.
Thanks in advance69 V3.ctz