Ok guys, so when i got my meth kit last weekend i got a retune as well.
truck seemed to run good no problems but i did notice truck seemed alittle more shaky at idle,but not like a miss , so anyway today its very cold here
i warm up truck, when i come back out i have a code p0174 [lean bank 2]
clear it let truck run again now get p0174 p0171 both banks lean. is this my tune or maby my o2 sensors which are a month old? please help

 

well ive had the same 2 codes for a year and cant get rid of them,everytime i clear them they come right back ,ive eveen went as far as changing my intake gaskets,cause gm says that a reason on theyre report for a po171, .the only coincidence is do you have a car starer?i do and it seems like thats what starts it if i dont use the car starter in the morn i can g o out and start it and drive for some time b4 it comes on,the other coincidence is aloot of times not always when i get intoo it hard it does it ..then other times it just does it driving down the rd.,let me know if any of this sounds familiar.it drives me nuts.i saw a write up 1 time that a car starter could cause a code.believeit or not.im assuming that as its got to do with loading up at idle b4 i get out there.let me know youre findings