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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1375 (Engine Controls And Fuel - 6.6L - DTC P02E8 To DTC P1247) >> DTC P0300-P0308 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 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.

  1. If any DTCs other than P0300-P0308 are set, diagnose those DTCs first.
  2. If only DTC P0300-P0308 are set, go to Fuel Injector Balance Test with Tech 2 .
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