Fuel Distance/Mileage Module: Description and Operation

This system consists of green and amber indicator lights located on the fuel gauge or telltale lamp cluster, a switch mounted on the instrument panel behind the gauges and an interconnecting vacuum hose and tee. The system operates on engine vacuum through a dual contact vacuum sensing switch. When the accelerator is operated slowly and smoothly, engine vacuum remains high and the switch passes current to the green indicator light which indicates economical fuel consumption. When the accelerator pedal is depressed rapidly, vacuum decreases and the switch passes current to the amber indicator light, which indicates high fuel consumption. The amber indicator light will glow when the ignition switch is in the On position with the engine stopped.