MechanicDB
Fault Family System: Powertrain (P-Codes) 17 SAE Codes

Diesel Injector Pump Calibration

Diagnostic & Technical Explanation
Code P262A (Fuel Injector - Pilot Injection Not Learned) sets when the ECM finds an injector or high-pressure pump calibration missing, not learned, or incompatible with the stored coding, including per-cylinder injector trim codes (IQA/IMA data) that must be programmed whenever an injector is replaced, and pilot-injection or pump-timing learn procedures that have not completed. This is a programming fault rather than a hardware failure: the usual trigger is injector or pump replacement without entering the new component's calibration code with a scan tool.

These 17 diagnostic trouble codes share one detection mechanism and one repair path, which is why MechanicDB groups them into a single authored fault family rather than repeating the same explanation 17 times.

Codes in this family (17)

CodeDefinitionRepair coverage
P262AFuel Injector - Pilot Injection Not Learned3 ranked fixes
P2672Injection Pump Timing Offset3 ranked fixes
P2673Injection Pump Timing Calibration Not Learned3 ranked fixes
P2674Injection Pump Fuel Calibration Not Learned3 ranked fixes
P268AFuel Injector Calibration Not Learned/Programmed3 ranked fixes
P268BHigh Pressure Fuel Pump Calibration Not Learned/Programmed3 ranked fixes
P268CCylinder 1 Injector Data Incompatible3 ranked fixes
P268DCylinder 2 Injector Data Incompatible3 ranked fixes
P268ECylinder 3 Injector Data Incompatible3 ranked fixes
P268FCylinder 4 Injector Data Incompatible3 ranked fixes
P2690Cylinder 5 Injector Data Incompatible3 ranked fixes
P2691Cylinder 6 Injector Data Incompatible3 ranked fixes
P2692Cylinder 7 Injector Data Incompatible3 ranked fixes
P2693Cylinder 8 Injector Data Incompatible3 ranked fixes
P2694Cylinder 9 Injector Data Incompatible3 ranked fixes
P2695Cylinder 10 Injector Data Incompatible3 ranked fixes
P2696Injector Data Incompatible3 ranked fixes

What this page does not show

This page publishes the fault mechanism and the code index. The licensed dataset adds, for every one of the 15,886 codes, the full authored repair set (56,729 procedures in total) with the fields deliberately withheld here: