With checking the codes with gt tuner the only 2 it is continuously through even after I clear them is the P0700 tcm ,P 0380 glow plug/heater circuit, and P1621 control module term memory
I have an 02 lb7 it has been ever deleted straight piped everything else is stock as far as I know other than me buying a bully dog gt tuner and installing on the truck but 4 days after tuning it with bully dog trans went to limp mode and screen on tuner is saying it’s limped to 4th gear… I have...