1. Module Installation: You will need to run the wiring harness thru the firewall and attach your power module to the harness inside the cab of your truck. Place the module under the dash out of the way
of your pedals.
2. Data Link Connection: The Data Link connector is located in different locations based on the year of the truck.
98.5-99: The triangle shaped connector is located on the driver’s side of the engine in the wiring harness near the power steering pump.
2000-2002: The three prong flat connector is located on the top of the fuel lift pump that is located on the driver’s side of the engine directly below the map sensor.
Note: on some 2001 trucks the connector is located on the driver’s side of the engine in the wiring harness near the power steering pump.
3. A plug is installed in the data link connector on the truck to resist corrosion. Remove this and install the supplied connector from your Big G Diesel Power Module.
4. Connecting The MAP sensor: Disconnect the stock wiring harness at the MAP sensor located to the rear of the fuel filter housing near the top of and on the engine block. Plug the supplied MAP sensor connector into the stock engine MAP sensor and the stock engine wiring harness connector into the supplied MAP sensor connector. The MAP sensor shown in the image is for a 2001, the 1998.5- 2000 and the 2002 is a different sensor but in the same location. For the 2002 you will need to use the supplied adaptors to make your connection. For the 98.5-2000 your wiring harness will have the proper connectors on it.
5. Installing The Switch: Connect the four pin connector on your switch to your power module and rout the switch to your desired location. Once installed you will have three different power levels to choose from.

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