i was getting a p0128 (engine coolant temp out of range..... basically) which makes sense because it set off the code a few weeks ago when it was cold, i cleared the code and drove it another week it drove fine everything was normal, as soon as it cooled down again it came back so i thought i must have a thermostat stuck open it was also taking along time to warm up, so i changed the thermostats and think i solved the problem... almost! truck warms up like it used to and it hasn't set off that code again but the truck still shifts like sh!t and it hangs up between 1-2 2-1 shift just as it did when the code was present. is there anyway im not getting it to fully reset i have cleared the codes a dozen times and reloaded my tune and reset the taps any ideas?