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Articles for Technical Support for Tuner Depot

Tech Support Policy

We do not offer any physical, technical support. If you are not 100% confident in your ability to install and troubleshoot any issues you should have a trained diesel-mechanic handle the installation and troubleshooting. You are still welcome to emai

Why is my transmission shifting rough after tuning?

Whenever a diesel truck is tuned for increased power, the transmission needs to relearn the new torque values. The transmission will take 2-4 days (depending on how much it's driven) to relearn the new parameters and shift points. Remember:. When re-

WHAT DOES KOEO (KEY ON, ENGINE OFF) MEAN?

KOEO or Key On Engine Off refers to the vehicle needing to be in the “Run” key position with the engine not running in order to perform any programming or flashing. This key position turns on all vehicle specific modules without having the engine ope