// Install guides
SOTF SWITCH — 08-10 POWERSTROKE 6.4L
Position 1 is a 1000 RPM high idle. Do not drive in position 1.
Installing the EZ LYNK shift-on-the-fly switch on a 2008–2010 Ford F-250/F-350 Super Duty 6.4L Power Stroke by tapping it into the IAT sensor wiring. Tools: • Flashlight • Flathead screwdriver • Snips • 5 ft of wire to fish the switch wires through the firewall • Zip ties • Electrical tape • 8mm 1/4" drive socket • 1/16" drill bit • Unibit #1 or 3/8" drill bit • 1/8" drill bit
Steps
1 Locate the 6.4L air intake system
Pictured below.
2 Remove the air intake
Use the 8mm socket and set the intake aside.
3 Locate the two-wire IAT sensor
It sits below where the intake was, along the passenger side intake runner near the MAP sensor.
4 Unplug the sensor and cut back the sheathing
Cut back approximately 1.5" of the protective wire sheathing, if needed.
5 Tap the SOTF switch into the purple and turquoise/white wires
Polarity does not matter.
6 Leave the sensor unplugged from the factory location
Tape the end of the plug if desired.
7 Make sure a SOTF profile is installed on the ECM
If a SOTF profile or calibration is installed without a switch, the ECM defaults to position 1, the lowest power.
• Position 1: 1000 RPM high idle. DO NOT DRIVE IN POSITION 1.
• Position 2: stock / lowest power setting.
• Position 3: tow setting (depending on tune).
• Position 4: street setting (depending on tune).
• Position 5: highest power / race setting.