Auto Shutdown (ASD) Relay
When distributor signal is not present with ignition switch in "RUN" position, the ASD relay turns power off to the electric fuel pump, fuel injectors, ignition coil and O2 sensor heating element.
When distributor signal is not present with ignition switch in "RUN" position, the ASD relay turns power off to the electric fuel pump, fuel injectors, ignition coil and O2 sensor heating element.