03 Chevy Silverado 4.8 ext cab 2wd. Brand new 0 mile trans bought from Napa and I just installed a couple weeks ago. Been trying to get truck out of reduced power ever since. I'm new here so sorry if this has already been answered in a previous thread. But honestly ive spent hours and hours searching forums for 2 weeks and haven't seen an answer to my issue so I doubt it's somewhere else already. Originally I was getting code p1518. Bought used ECM with vats deleted and vin swapped, new tac...
TAC module/ TPS/ PPS issues
TAC module/ TPS/ PPS issues