Conditions for Setting the DTC: P0507

WARNING: This page is about a different car, the 2009 GMC Sierra and 2009 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The ECM detects that the actual idle speed is approximately 90 RPM higher than desired idle speed.
The above condition is present for 3 tests consisting of 8 seconds each.