Severity: Fix within days. Drive with caution and watch for new symptoms.
The air-flow sensor is reporting more air than the engine can plausibly be taking in, so the computer adds too much fuel.
Inspect the wiring and connector, clean or replace the sensor, and check for non-stock intake parts.
The engine may run rich, idle rough, and use more fuel. Drivable with care.
You can drive short distances carefully; watch for worsening symptoms. The engine may run rich, idle rough, and use more fuel. Drivable with care.
The most common causes are: Failing mass air flow sensor; Shorted sensor wiring; Aftermarket intake parts confusing the sensor; Damaged sensor connector. A scan tool and a visual check of the parts above is where a technician starts.
Inspect the wiring and connector, clean or replace the sensor, and check for non-stock intake parts.
