I'm currently running the Tow tune on my '07 5.9. Check engine light came on this morning, can I revert back to the stock program to take it in to the dealer and retain the trouble code?

Thanks,

Brett

 

well if it is a hard code it will come back as soon as you drive it if it does clear. pull the codes and see what it is and post up

 

Its a P1740 (TCC/ OD Solenoid)
I've had this code more times than I can count . Fought with 1 dealership for over a year trying to figure out ***. Been trying a new dealer out so I will see what they say. Will switch back to stock program tonight and see if it stays.
I see a Gorend in my future anyways.

Thanks cbrahs

 

welcome