Installation Instructions<br>Ford Powerstroke 3.0L V6<br>Stealth Module (2018-2019)

Included With Purchase

(1x) Stealth Module
(1x) Wire harness with fuel rail sensor connections
(2x) Zip ties
(1x) Install instructions
(1x) Selector switch if purchased


Be sure your truck has been off, with the hood unlatched and key fob located away from the vehicle for at least 15 minutes before installing the module. Key fob needs to continue to stay away from the vehicle for the entire installation process. This allows the computer to 'sleep' and for your engine compartment to cool down. It also helps mitigate your ECM from detecting an interruption in a sensor's electrical circuit.

Step 1

Remove plastic engine cover.

Step 2

Move rubber insulation aside on the front passenger side of the engine to expose the front of the fuel rail.

Step 3

Unplug fuel pressure sensor on the end of the fuel rail. Plug our connectors inline. Pay close attention to the orientation of where our harness plugs into your factory harness. If it is plugged in upside down, it will not clip.

Step 4

Zip tie or velcro your Stealth Module in a safe location away from direct heat.

Selector Switch

The Dial Going Clockwise:

Stock - Low - Medium - HighLow: 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.

Check Engine Light | 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!