Severity: Fix within days. Drive with caution and watch for new symptoms.
The engine computer is getting no usable signal from the sensor that measures how much air is entering the engine, so it cannot calculate the right amount of fuel.
Clean the MAF sensor with a dedicated MAF cleaner, check the intake hoses for cracks, and replace the sensor if cleaning does not restore a clean signal.
The car may run rough, hesitate, or stall. Short careful trips are usually possible.
You can drive short distances carefully; watch for worsening symptoms. The car may run rough, hesitate, or stall. Short careful trips are usually possible.
The most common causes are: Dirty or failed mass air flow sensor; Damaged wiring or loose connector at the sensor; Air leak in the intake hose after the sensor; Clogged air filter. A scan tool and a visual check of the parts above is where a technician starts.
Clean the MAF sensor with a dedicated MAF cleaner, check the intake hoses for cracks, and replace the sensor if cleaning does not restore a clean signal.