Monitor Condition
WARNING: This page is about a different car, the 1995 Pontiac Bonneville, 1995 Oldsmobile Eighty-Eight, and 1995 Buick LeSabre. However, it is still accessible from the selected car via links, so may be relevant.
PCM will run EGR test when the following conditions are present.
- Codes P0122, P0123 or P0501 are not set.
- Brake has been applied.
- Engine coolant temperature is greater than 185°F (85°C).
- Throttle angle is less than one percent.
- Vehicle speed is greater than 25 MPH.
- Engine speed is 900-1100 RPM.