Change Pcm Programming For Fuel Tank Volume.

[chrisb1]

Has anyone been able to modify the factory programmed fuel tank volume in the PCM to

accommodate a larger midship fuel tank (Transfer Flow 45 gallon as an example). The vehicle

trip computer will not function for miles left since it believes the vehicle still has a 26 gallon stock tank.

The average fuel use will function but not the miles left to empty.

 

2008 GMC 2500HD Diesel.