This could be due to several issues, including:
* Faulty MAF sensor: The sensor itself might be failing and not accurately measuring the air intake. This is the most common cause.
* Dirty MAF sensor: The MAF sensor has a delicate wire that can be easily contaminated by dirt, oil, or other debris. A dirty sensor will give inaccurate readings.
* Vacuum leaks: Leaks in the intake system can cause a lower-than-expected airflow reading.
* Wiring problems: Damaged or loose wiring connected to the MAF sensor can also lead to this code.
To diagnose the problem, you'll likely need to:
1. Visually inspect the MAF sensor: Look for any visible damage or dirt buildup. Clean it carefully if it's dirty (using MAF sensor cleaner, NOT regular cleaner).
2. Check for vacuum leaks: Inspect all vacuum hoses and connections for cracks or loose fittings.
3. Inspect the wiring: Check the wiring harness connected to the MAF sensor for any damage, corrosion, or loose connections.
4. Have the MAF sensor tested: A professional mechanic can test the MAF sensor to determine if it's functioning correctly.
Replacing the MAF sensor is often the solution if cleaning and checking the wiring and vacuum lines don't resolve the issue. However, it's best to properly diagnose the root cause before replacing parts to avoid unnecessary expense.
