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Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 24 (Engine Controls And Fuel - 2.8L (LWN) Diesel - Diagnostic Information And Procedures (1 Of 3)) >> Diagnostic Information and Procedures >> DTC P01CB-P01D2 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different variant/trim than selected.
  1. Perform a conventional engine compression test. Refer to : Engine Compression Test
    • If one or more cylinders indicate low compression 

      Repair as necessary

    • Go to next step : If all cylinders indicate normal compression 
  2. Test or replace the component : Q17 Fuel Injector
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