The ground inside mass air flow (MAF) sensor can corrode and possibly cause drivability problems. The corrosion is enough to affect the sensor data but not enough to create a trouble code. Diagnosing this can be difficult because it won't always illuminate the Check Engine light.
Average mileage: 123,913 (97,827–150,000)
Engines affected: 2.5L 4 Cylinder, 3.5L V6
6 people reported this problem