Warning Signs Your Air Flow Meter is Failing
- Rough idling
- Stalling
- Poor acceleration
- Reduced fuel economy
- Check engine light is on
How to Test if This Part is the Problem
- Check the air filter to make sure it's clean. A dirty filter can cause problems that seem like a bad air flow meter.
- Use an OBD2 scanner to read the error codes. A code specifically related to the air flow meter suggests it's the problem.
- Visually inspect the air flow meter for damage or debris.
- Test the air flow meter's electrical connections with a multimeter. Consult a repair manual for the correct readings.
- If possible, temporarily swap in a known good air flow meter to see if the symptoms disappear.
Common Failure Causes for This Part
- Dirt and debris entering the engine
- Oil contamination from a poorly maintained air filter
- Electrical damage
- Age and wear