P2279 MERCURY - Intake Air System Leak Detected
- Check for intake leaks
- Faulty Mass Air Flow (MAF) sensor
- Faulty PCV system
- Engine Light ON (or Service Engine Soon Warning Light)
P2279 Mercury DescriptionThe Engine Control Module (ECM) has detected a vacuum leak into the engine. The ECM monitors the air passing through the Mass Air Flow (MAF) sensor, a vacuum leak means that unmetered air is entering the engine without passing through the MAF.
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