Tyler Lumb

I have a Reduced Engine Power mode coming on and I've checked the tps sensor and that's fine I've checked grounds, I've done a throttle relearn, and I have made sure the pedal is actually actuating the throttle. Does anybody have any other ideass on where to look? I have looked at most forums online and they aren't leading me anywhere besides just throwing parts at it. (I haven't checked the codes it's throwing because I don't have a code reader and the closest Autozone is about 10 miles away and it kicks into limp mode after a few minutes of running. I also havent actually checked to see if the grounds are clean just made sure they are tight.) Would a dirty air filter have anything to do with this? Thank you for any help

I have a rcsb work truck with manual locks and windows. Would it be possible to convert it to power locks and windows by getting a bcm and the body harness off a extended cab truck that already has power? I know I would need new doors but what other things would I need? And is this even possible? If it is would it think the rear doors are open since those plugs wouldn’t be plugged in?