DECEL. Control System: Description
The Deceleration Control system is designed to maintain a balanced air/fuel mixture during deceleration. Upon initial deceleration, rapid closing of throttle plates can cause overly rich fuel mixture.
This system consists of an anti-afterburn valve (air by-pass valve on 626 and Calif. B2000 models) and throttle positioner system. The throttle positioner system consists of servo diaphragm, engine speed switch and 3-way solenoid valve.