2017-2018 Ford Powerstroke SOTF switch install. SOTF cable must be installed before loading SOTF-ready tunes! The switch location changed on the 2017 Powerstroke so Injected Motorsports made a new how-to PDF showing where the next plug is located.
17-18 Powerstroke Shift On The Fly Installation Instructions
SOTF cable must be installed before loading SOTF-ready tunes!
- Locate the wire harness and grommet on the driver’s side firewall directly behind the parking brake pedal.
- Make an incision in the grommet large enough to fit the SOTF cable through. (Fishing tool helps pull the wire through the firewall).
- Locate the other side of the grommet in the engine compartment (next to the brake booster) and cut the tip or a slit in the rubber.
- Route the shift on the fly cable through the grommet from inside the cab to the engine compartment.
Note: Taping up the pin terminals together will make it easier to pull the wire through the firewall and won’t damage the pins. - Connect the shift on the fly cable terminal to the connector with the exposed copper wire facing up while the connector housing is positioned as depicted in the picture below. It does not matter which terminal goes in which hole. Be sure the terminals fully seat in the terminal housing and click into place.
- Locate the charge air cooler temperature sensor and disconnect it. (On the 2017 & 2018 models it's located on top of the cooler pipe).
- Reroute the charge air temperature sensor connector to easily connect the SOTF connector and use the heat shrink wrap to protect the wires. Pull any excess slack in the SOTF cable from the engine compartment into the cab.
*Some images were obtained from No Limit Fabrication