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2021 BMW X3 XDRIVE30I
2.0L I4 Turbo B48•AWD•AUTOMATIC•gas•B48B20•turbo
11 active safety recalls on this vehicle — view recalls
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Repairs0Labor484Torque1486Fluid10DTC2246Battery1Maintenance0Recalls11
P0253high severityPowertrain

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

on 2021 BMW X3 xDrive30i 2.0L I4 Turbo B48 · AWD

What this code means

The PCM detected a low signal in the diesel injection pump fuel metering control 'B' circuit. This can affect fuel delivery and engine performance.

Symptoms

  • Hard starting
  • Rough running
  • Reduced power

Common causes

  • Faulty fuel metering control valve
  • Short to ground in circuit
  • Wiring or connector damage
  • Injection pump fault

Diagnostic steps

  1. Scan for diesel fuel codes
  2. Inspect metering control valve wiring
  3. Check circuit for shorts to ground
  4. Test injection pump operation
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Other Powertrain codes on this vehicle

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