P0507

P0507-IDLE CONTROL SYSTEM RPM - HIGHER THAN EXPECTED

Special Tools:






For a complete wiring diagram, refer to the Wiring Information.

Theory of Operation

The engine control system uses many methods to achieve stable idle speed (RPM), and is capable of compensating for unexpected changes in load (accessory devices switching on, etc.). In the event that the engine is incapable of steadily maintaining the desired idle speed, either due to overshooting this target, undershooting, or "hunting", this DTC may be set.

- When Monitored:
Engine is at idle.

- Set Condition:
Engine speed is consistently at least 50 RPM above the target idle speed.





Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Pre-Diagnostic Troubleshooting Procedure.
CHECK FUEL INJECTORS
1. Using Fuel Rail Cap , cap off the Fuel Injectors one at a time to determine which Fuel Injector is leaking into a cylinder.

View repair

Yes

- Replace the faulty Fuel Injector.
- Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Powertrain Verification Test.