Diesel Intake Air Flow A Control Performance
Diesel intake air-flow control A is electrically OK but does not move the throttle plate as commanded — typically carbon buildup or seized actuator.
Affected components
- Diesel intake throttle
Common causes
- High likelihood: Carbon buildup blocks flap travel
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
Related codes
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.