P0256

Injection Pump Fuel Metering Control B Malfunction (Cam/Rotor/Injector)

DTC P0256, sometimes indicated as P025600 is an OBD diagnostic trouble code indicating a generic fault with the vehicle powertrain (i.e. engine and gearbox). This code identifies an error with the air/fuel mixture causing injection pump fuel metering control b malfunction (cam/rotor/injector).

The DTC code P0256 is set when the fuel injection pump fuel metering control B signal is out of range. This signal is used to control the amount of fuel delivered to the cylinders.
The most common causes of this code are a defective fuel injection pump, a defective camshaft position sensor, or a defective crankshaft position sensor.
If the code is caused by a defective fuel injection pump, the pump will need to be replaced.
If the code is caused by a defective camshaft position sensor, the sensor will need to be replaced.
If the code is caused by a defective crankshaft position sensor, the sensor will need to be replaced.

  • P0256: Injection Pump Fuel Metering Control B Malfunction (Cam/Rotor/Injector)
  • P0256: Injection Pump Fuel Metering Control "B" (Cam/Rotor/Injector)
  • P0256: Injection Pump Metering Control B Malfunction (Cam/Rotor/Injector)
  • P0256: Injection pump fuel metering control B, cam/rotor/injector – circuit malfunction
  • P0256 00: Injection Pump "A" Fault
  • P0256 00: Injection pump fuel metering control B, cam/rotor/injector - circuit malfunction

DTC Trouble Code Search
Bulletins

Bulletins are notices put out by manufacturers in conjunction with the NHTSA to notify the public of manufacturing issues or changes.

  • SSM74589 - FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP
    JAGUAR: Vehicles equipped with an aj126 supercharged v6 engine are experiencing noise from the hp fuel pumps and/or a check engine mil illuminated with one of the following dtcs stored in the pcm. P228F-85 P025C-11 P0251-13 P064A-38 P0256-1
  • SSM74588 - POWER TRAIN
    LAND ROVER: Vehicles equipped with an aj126 supercharged v6 engine are experiencing noise from the hp fuel pumps and/or a check engine mil illuminated with one of the following dtcs stored in the pcm. P228F-85 P025C-11 P0251-13 P064A-38 P0256-1
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