A faulty Mass Air Flow (MAF) Sensor can cause inaccurate airflow readings, leading to several engine performance issues. Common signs of a failing MAF sensor include rough idling, hesitation during acceleration, reduced engine power, poor fuel economy, difficulty starting the vehicle, and an illuminated check engine light. In some cases, the engine may stall or run excessively rich or lean due to incorrect air-fuel mixture calculations.
Genuine Toyota OEM 22204-30030 2220430030