P2279

DTC P2279: Intake Air System Leak Detected (2003 AT-PZEV (SULEV) and 2004-2005 models)

NOTE: Information marked with an asterisk (*) applies to 2003 ULEV model.

1. Reset the ECM with the HDS.
2. Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or 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 Temporary DTCs or DTCs with the HDS.

Is DTC P2279 (P1505)* indicated?

YES - Check these parts for vacuum leaks:
- PCV valve
- PCV hose
- EVAP canister purge valve
- Throttle body
- Intake manifold
- Brake booster hose

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