Alternative Fuel Relay Module
The ALT fuel relay module contains 2 replaceable fuses. Fuse No. 1 (3-amp) protects battery feed (BATT) to the compuvalve. Fuse No. 2 (10-amp) protects BATT feed to the ALT fuel power relay. These 2 fuses protect VPWR circuits of the compuvalve.
ALT fuel relay module also contains 2 mini ISO relays: the ALT fuel power relay and the fuel pump cutoff relay. The ALT fuel power relay provides power to the compuvalve when the ignition switch is turned to ON position. When the ALT/GAS switch is placed in the ALT position, the fuel pump cutoff relay interrupts power from the gasoline fuel pump relay to the gasoline fuel pump.