Inertia Fuel Shutoff Switch
Disconnect inertia fuel shut-off switch 3-pin harness connector. See Fig 1. Measure continuity between inertia fuel shut-off switch harness connector terminals No. 2 (Black wire) and No. 3 (Black/White wire). When switch is open (tripped) continuity should not exist. When switch is closed (set) continuity should exist. If continuity is as specified, inertia switch is okay. If continuity is not as specified, replace switch.