mazda Workshop Repair Guides

Mazda Workshop Service and Repair Manuals

Idle/Bypass Air Control Valve <--> [Idle Speed/Throttle Actuator - Electronic]|Specifications|Page 2912 > < Idle/Bypass Air Control Valve <--> [Idle Speed/Throttle Actuator - Electronic]|Specifications|Page 2910
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BAC Valve Hose "Port A"

2.   Blow through the BAC valve from port "A" and check the air flow.

    

Cold engine:  Air flows

    

Warm engine:  Air doesn't flow

3.   Disconnect the BAC valve connector.

BAC Valve Ohmmeter Connection

4.   Connect an ohmmeter to the BAC valve Terminals.
5.   Check the resistance.  It should be 10.8-12.3 Ohms.

Idle/Bypass Air Control Valve <--> [Idle Speed/Throttle Actuator - Electronic]|Specifications|Page 2912 > < Idle/Bypass Air Control Valve <--> [Idle Speed/Throttle Actuator - Electronic]|Specifications|Page 2910