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Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 12 (Engine Controls And Fuel - 2.8L (LWN) Diesel - Diagnostic Information And Procedures (3 Of 3)) >> Diagnostic Information and Procedures >> DTC P20CB, P20CD, P20CE, P2670, or P2671 >> Component Testing

Component Testing

WARNING: This page is about a different variant/trim than selected.

Static Test

  1. Ignition/Vehicle - Off
  2. Disconnect the electrical connector : Q67 Exhaust Aftertreatment Fuel Injector
  3. Test for 10 to 14 ohms between the test points : Control terminal 1 & Control terminal 2
    • If not between 10 and 14 ohms 

      Replace the component : Q67 Exhaust Aftertreatment Fuel Injector

    • Go to next step : If between 10 and 14 ohms 
  4. All OK.
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