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DTC P268C-P268FDiagnostic Instructions
DTC DescriptorsDTC P268C: Cylinder 1 Injector Calibration IncorrectDTC P268D: Cylinder 2 Injector Calibration Incorrect DTC P268E: Cylinder 3 Injector Calibration Incorrect DTC P268F: Cylinder 4 Injector Calibration Incorrect Circuit/System DescriptionThe control functions for the fuel injection system are integrated in the engine control module (ECM). During the manufacturing process, each injector flow rate is measured and recorded as injection quantity adjustment flow rate data. This data, together with the injectors cylinder position, is stored in the ECM. When the ignition is turned ON, the ECM monitors the fuel injection flow rate numbers to ensure they are present. Conditions for Running the DTCThe ignition is ON. Conditions for Setting the DTCThe fuel injector injection quantity adjustment flow rate data is not programmed. Action Taken When the DTC SetsDTCs P268C, P268D, P268E and P268F are Type B DTCs. Conditions for Clearing the DTCDTCs P268C, P268D, P268E and P268F are Type B DTCs. Diagnostic AidsVerify that the ECM has the correct part number for the application. Circuit/System Verification
If DTC is set, replace the K20 Engine Control Module. Repair InstructionsPerform the Diagnostic Repair Verification after completing the diagnostic procedure. |
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