Adding a Fuel Rail Pressure Gauge to your truck? If you’re driving a 03-11 5.9L or 6.7L Cummins or 01-12 Duramax LB7, LLY, LBZ, or LLM truck, using a MaxTow Fuel Rail Pressure Gauge Wiring Harness will simplify the install. The Fuel Rail Pressure Harness will install directly to the fuel rail pressure sensor without having to splice into any of the factory wiring.
To install your fuel rail pressure harness, simply disconnect the rail pressure harness connector and plug the new Fuel Rail Pressure pigtail harness into the factory sensor and sensor harness. Finish the install by connecting the green and black wires from the gauge harness to the matching wires on the pigtail rail pressure harness. The rail pressure harness adapter is 6” in length and features 9” sensor and ground lead wires.
MaxTow’s Fuel Rail Pressure Gauge reads your truck’s high fuel pressure levels directly from the common rail to allow you to monitor your Cummins and Duramax engine with unrivaled accuracy, while protecting against damage to your fuel pump, injectors, or a loss of overall horsepower. The Double Vision 30,000 PSI Fuel Rail Pressure Gauge is available with a black or white face and features an illuminated red needle and green LED display, while also giving you an easy to read green digital numerical readout.
MaxTow includes installation instructions with each purchase, as well as free lifetime technical support and a one year limited warranty.