OBD II Fault Code

  • OBD II P268B

OBD-II Code Decreased engine performance is defined as a High Pressure Fuel Pump Calibration not Learned/Programmed

The high pressure fuel pump converts low pressure fuel from the tank to high pressure fuel for the fuel injectors. If the pump is not programmed to the engine computer (PCM), code P268B will be stored.

Decreased engine performance Symptoms

  • Decreased engine performance
  • Engine may not start

Common Problems That Trigger the P268B Code

  • High pressure fuel pump failure
  • High pressure fuel pump is not coded to the powertrain control module (PCM)
  • Powertrain Control Module (PCM) failure
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