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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 P2122, P2123, P2127, P2128, or P2138 >> Conditions for Setting the DTC

Conditions for Setting the DTC

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P2122 

APP Sensor 1 = Less than 0.32 V - For greater than 175 ms

P2123 

APP Sensor 1 = Greater than 4.75 V - For greater than 175 ms

P2127 

APP Sensor 2 = Less than 0.16 V - For greater than 175 ms

P2128 

APP Sensor 2 = Greater than 2.4 V - For greater than 175 ms

P2138 

APP Sensor 1 and 2 = Not within a calibrated range - For greater than 188 ms