Throttle Actuator Control System - Sudden High Air Flow Detected
A sudden, large jump in MAF/MAP signal not matched by a corresponding pedal change has been detected — typically a torn intake boot, dropped MAF sensor, or actively-stuck-open throttle plate.
Affected components
- Electronic throttle body
- Mass air flow sensor
- Intake air duct
Common causes
- High likelihood: Torn intake boot
- Medium likelihood: MAF sensor connection lost
Possible symptoms
- Check engine light on
- Reduced throttle response, possible limp mode
- Hesitation or surging
- Idle too high or too low
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
- Reduced-power or limp mode may occur
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.