p0121......
 

replaced the tps sensor and cleared the code. the ses light came back on and its the same code again.... what gives? goin back to wheatley tomorrow to see if its in the tune. i first started getting this code randomly after getting my last retune. it comes and goes. it might not come on for several days, then it comes on and goes off as it pleases. the truck runs fine, no problems at all. what do you guys think?

it's just the map reading out of range, alot of cammed trucks get this. he should know how to disable the test in the tune.