The MAF sensor measures the amount of air entering the engine. A low input could be caused by several things, including:
* Faulty MAF sensor: This is the most common cause. The sensor itself might be dirty, damaged, or failing.
* Dirty air filter: A clogged air filter restricts airflow, leading to a lower reading from the MAF sensor.
* Vacuum leaks: Leaks in the intake system can cause inaccurate readings.
* Wiring problems: Damaged or corroded wiring to the MAF sensor can also cause low input.
To troubleshoot, start with the simplest solutions:
1. Check and clean the air filter: Replace it if necessary.
2. Inspect the MAF sensor: Look for visible damage or dirt. Clean it carefully with MAF sensor cleaner (never use anything else as it can damage the sensor). Be gentle!
3. Check the wiring and connections: Look for any damage, corrosion, or loose connections to the MAF sensor.
If these steps don't solve the problem, you'll likely need a professional mechanic to diagnose the issue further. They may use a scan tool to check for other related codes or test the MAF sensor directly.
