Mass Air Flow Sensor Plausibility Air Mass Too Low

Test 1 - Test 4:

Test 5:

SYMPTOM
P2066-MASS AIR FLOW SENSOR PLAUSIBILITY AIR MASS TOO LOW

TEST NOTE
This symptom is diagnosed using the test P2066-MASS AIR FLOW SENSOR PLAUSIBILITY AIR MASS TOO HIGH.

WHEN MONITORED
With the engine running.

SET CONDITION
The ECM detects low air flow from the MAF Sensor.

POSSIBLE CAUSES
- Air filter
- Air restriction
- Checking for air leaks
- Mass airflow sensor
- Intermittent condition