Fuel Shut-Off System: Operation: Pickup

The Pickup system includes an anti-dieseling solenoid valve in the carburetor, controlled by a vacuum switch. When intake manifold vacuum increases to an high level during deceleration, fuel of the slow system is shut off by the anti-dieseling solenoid valve. When the intake manifold vacuum drops to a low level, the fuel of the slow system is resupplied.

A subsidiary control system assists in controlling the fuel. The fuel shut-off system is affected by the neutral switch and the inhibitor switch to ensure that fuel cannot be shut-off even if the manifold vacuum is high enough to trigger the fuel shut-off operation.