P0507

DTC P0507: Idle Control System RPM Higher Than Expected (2004 - 2005 models)

NOTE:
- If DTC P0511 is stored at the same time as DTC P0507, troubleshooting DTC P0511 first, then recheck for DTC P0507.
- Before you troubleshoot, record all freeze data and review the general troubleshooting information.

1. Start the engine. Hold the engine speed at 3,000 rpm without load (in neutral) until the radiator fan comes on, then let it idle.
2. Check the engine speed at idle without load conditions: headlights, blower fan, radiator fan, and air conditioner off.

Is the idle speed 800 ± 50 rpm?

YES - Intermittent failure, system is OK at this time.

NO - Go to step 3.

3. Turn the ignition switch OFF.
4. Remove the intake air duct from the throttle body.
5. Start the engine, and let it idle.




6. Put your fingers on the upper and lower ports (A) in the throttle body.

Does the idle speed drop below 850 rpm?

YES - Check the idle speed with a different load condition (electrical, A/C, etc.). If it is out of specification, replace the IAC valve.

NO - Check for vacuum leaks at these parts:

- PCV valve
- PCV hose
- EVAP canister purge valve
- Intake manifold
- Throttle body
- Brake booster hose