Operation CHARM: Car repair manuals for everyone.

Deceleration Control System

Deceleration Control System:




SYSTEM OVERVIEW
Dashpot:
Prevents the throttle valves from closing suddenly.

Idle air control valve:
Prevents afterburn, air is supplied to intake manifold during deceleration.

Fuel cut control:
Improves fuel economy and prevents engine bucking during deceleration.

Air bypass valve:
Bypasses compressed air from the turbocharger to air cleaner housing during deceleration to prevent noise.