OBDII Code List

P2279 MERCURY - Intake Air System Leak Detected

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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Possible causes

  • Check for intake leaks
  • Faulty Mass Air Flow (MAF) sensor
  • Faulty PCV system

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P2279 Mercury Description

The 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.
OBDII Code P2279 Mercury - Intake Air System Leak Detected -

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