Circuit/System Testing
WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
You may operate the vehicle within the conditions that are captured in the Freeze Frame/Failure Records list.
- If any DTCs other than P0300-P0308 are set, diagnose those DTCs first.
- If only DTC P0300-P0308 are set, go to Fuel Injector Balance Test with Tech 2 .