P2279

DTC P2279: Intake Air System Leak Detected (2004-2005 models)

NOTE:
- Information marked with an asterisk (*) applies to 2002-2003 models.
- Information marked with double asterisk (**) applies to 2004-2005 models.

1. Reset the ECM.
2. Start the engine. Hold the engine at 3,000 rpm without load (in neutral until the radiator fan comes on.
3. Let the engine idle for at least 40 seconds with the throttle fully closed.
4. Check for DTC with a HDS or a scan tool.

Is DTC P1505* (P2279)** indicated?

YES - Check these parts for vacuum leaks.

- PCV valve and hose
- EVAP canister purge valve
- Throttle body
- Brake booster hose
- Intake manifold gasket
- Intake air bypass control thermal valve and hose

NO - Intermittent failure, system is OK at this time.