Wide Open Throttle Switch (WOT)

This switch is used to detect full throttle condition by sensing manifold vacuum. When activated, a signal from WOT switch to ECM sets a temporary full rich mixture until throttle moves off wide open throttle position. Then the C-4 system returns to pre-WOT operating conditions. When wide open throttle condition occurs, decreased manifold vacuum (5 in. Hg) closes the WOT switch.