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Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 22 (Engine Controls And Fuel - 2.8L (LWN) Diesel - Diagnostic Information And Procedures (2 Of 3)) >> Diagnostic Information and Procedures >> DTC P042E or P042F >> DTC Descriptor

DTC Descriptor

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DTC P042E

Exhaust Gas Recirculation (EGR) Open Position Performance

DTC P042F

Exhaust Gas Recirculation (EGR) Closed Position Performance

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