Installation Instructions for Colorado/Canyon Duramax LWN 2.8L Stealth Module (2016-2020)

Included With Purchase

(1x) Stealth Module
(1x) Wire Harness with Fuel Rail Sensor Connections
(1x) Selector Switch


Video Installation


Step by Step Instructions

Let your truck sit with the hood popped, doors shut and the key fob away from the vehicle for at least 20 minutes. It is important to keep the key fob away and the doors shut during the entire installation process. DO NOT bring the key fob near the vehicle or open any doors until AFTER the module is fully installed and connections are verified. This allows the computer to 'sleep' and for your engine compartment to cool down. Failure to do so will result in a check engine light on startup.

Step 1:

Remove the oil fill cap and two T30 Torx screws that attach the engine cover.

Sensor Connections

Step 2:

When removing the cover, disconnect the oil line clip.

Sensor Connections

 Step 3:

Remove the thermal molded insulation from the engine.

Step 4:

Disconnect the factory harness female plug from the pressure sensor. Release the locking tab to allow the release of the plug.

Sensor Connections

Step 5:

Plug factory harness female plug into module harness male receptacle. Plug module harness female plug into the pressure sensor.

Sensor Connections

 Step 6:

Re-install all components removed to obtain access to the engine fuel rail. Do not forget to re-attach the oil line clip.

 Step 7:

Find a suitable location for the module. Driver's side is good. Secure the module with zip ties provided or with Velcro. Plug module harness into the module. Plug the selector switch harness into the module harness.

 Step 8:

Mount module away from hot and/or moving parts.