I have a 04.5 lly truck. Was running fine until one day the boost wasnt there. Like the turbo was stuck. So I did the checks and got ready to pull the turbo off but thought id look at vane position first. Actual vane position was at 100% all the time. Swap vane position sensors and nothing changes. Move the sensor by hand. Nothing changes. Used a jumper harness to move the turbo with voltage and the exhaust sound changes but the sensor never value never changes.

Truck had a ppe on it. So I went to remove the ppe and it said failure. I called ppe they said the ecm was corrupt and nothing could be done.

Changed ecm with a spare I had but when I went to turn vats off it now gives me the no data received error.

Has anyone fixed either of these issues without having to send off the ecm? I have bench force device to bench flash it. If someone has any ideas id like to try before I send them off or buy another.

Thanks