What does code P268B mean?

Q: What does code P268B mean?

High Pressure Fuel Pump Calibration Not Learned/Programmed. P268B means the engine control module has not successfully learned or stored the calibration values for the high-pressure fuel pump, so it cannot precisely control fuel pressure. The computer detects this when the calibration routine has not completed or the learned values are missing from memory, often after a battery disconnect, module replacement, or pump service.

DTC codes / P26xx · Computer and output circuits / P268B

P268BHigh Pressure Fuel Pump Calibration Not Learned/Programmed

P268B means the engine control module has not successfully learned or stored the calibration values for the high-pressure fuel pump, so it cannot precisely control fuel pressure. The computer detects this when the calibration routine has not completed or the learned values are missing from memory, often after a battery disconnect, module replacement, or pump service.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyProfessional

AreaComputer and output circuits

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.