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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1660 (Engine Control System & Fuel System - 6.6L (LMM) - DTC P02E8 To DTC P1247) >> DTC P0300-P0308 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 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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