Mixture Control Valve System

Mixture Control Valve:

MIXTURE CONTROL VALVE TESTING

1. Disconnect the larger hose connecting the mixture control valve with the intake manifold and plug the manifold side.
2. Check that secondary air continues to blow out from the valve for a few seconds when the throttle is opened full and quickly released.
3. If secondary air blows for more than 5 seconds, replace the mixture control valve.