Hi, during the past couple of days my GK have brought up these codes... U0029-00, U0402-68 and U0122...they go away every time i turn the car off and they don't come up on every driving cycle... And that's what makes it weirder.... I know they are all related and that they involve The ECM and the TCM, but my GK isba 6spd, so there's no TCM .... Have anyone had these codes .... Other than the annoying lights the car is running well...

Thanks in advance