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Home › Mitsubishi › 2003 › Lancer Evolution › Repair and Diagnosis › Engine Performance › System › Engine Controls - Self-Diagnostics - 2.0L Turbo › Diagnostic Tests › DTC P0101: Volume Airflow Circuit Range/Performance Problem › Possible Causes

Possible Causes

VAF sensor failed.
Open or shorted VAF sensor circuit or loose connector.
ECM (M/T) or PCM (A/T) failed.
Air leak between VAF sensor and throttle body.