ALT/GAS Fuel Switch (CNG & LPG)

WARNING: This page is about a different car, the 2002 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.

The ALT/GAS fuel switch allows driver to select which fuel vehicle will operate on. The ALT/GAS fuel switch is located on instrument panel and ALT/GAS fuel switch indicator is incorporated into ALT/GAS fuel switch. The ALT/GAS fuel switch only operates when vehicle is at a stop with ignition off. Once ignition is turned on, ALT/GAS fuel switch will not change fuel operating mode. If switch is moved while vehicle is running, gaseous fuel system will not automatically change fuel operating mode and no damage to vehicle will occur.

With ignition off, prior to starting vehicle, determine which fuel you intend to use and press ALT/GAS fuel switch. When selector switch is placed in GAS position, engine will operate in unleaded gasoline mode. When switch is placed in ALT position, engine will operate in gaseous fuel mode so long as temperature and pressure conditions are correct for operating on CNG or LPG. A Green indicator light will illuminate on fuel selector switch to indicate that vehicle is operating in gaseous fuel mode (CNG or LPG). The ALT/GAS fuel switch sends a signal to compuvalve requesting ALT fuel mode, when placed in ALT position. If no signal is received by compuvalve, fuel system defaults to base gasoline mode.