Need a little help on this. Primarily rough idle and occasional surging to light throttle issue, sets the P0300 code even after increasing values in...
I attempted to register the vehicle, but it is no longer operational. It informs me that the firmware is incompatible with my software (7.5) and that...
I would second the upgrade to the 411 PCM. The wiring swap is not tough and the tuning capacity is considerable. I did my first upgrade to the black...
Been playing with the latest v8 and scan/tune v3 for a few weeks now. I started with my stock 1999 Yukon 5.7l vortex that needed the engine rebuilt....