Ford Powerstroke 6.4L Stealth Module
Step by Step Instructions
Be sure your truck has been off for at least 10 minutes before installing the module to allow computer to "sleep" and for your engine compartment to cool down. This way it will not detect an interruption when you unplug your sensor.
Locate the Fuel Pressure Sensor on the passenger side of the engine, near the flexible rubber boot of the intake tube going to the air filter.
Unplug the Fuel Pressure Sensor connector and plug the male end connector of the module harness into the sensor.
Connect the factory male connector in the female end of the module harness.
Connect the switch into the small white port of the module harness.
Double check that all connections have snapped together securely.
Mount the module away from heat and moving parts.
Example: Passenger or driver side fender well.
How The Selector Switch Works
The dial going clockwise:
Stock - Low - Medium - High
Low: Towing heavy and low traction situations.
Medium: Moderate towing and ideal for everyday driving situations.
High: Maximum performance - ideal for empty highway cruising.
The switch must remain plugged in to stay in the desired setting. You can run the switch into the cab or leave it tied up under the hood. Leave in one setting as much as possible.
Everyone has different driving preferences, it’s suggested that you try each setting for at least a week to see what you prefer.
If You Get a Check Engine Light or Hard Start Upon Installation
Please check the connection between the truck’s wire harness and the module’s female plug and ensure it was connected properly. Improper installation will cause a CEL/hard starting.
Remove The Module Before Service Work
If you need to take your vehicle in for service work, REMOVE the module before work is performed.
If you have any issues, please contact our Technical Support or call us at (888) 613-4304
Send photos of your truck and your feedback!