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2021 HONDA CIVIC
1.5L I4 Turbo•FWD•CVT•gas•turbo
4 active safety recalls on this vehicle — view recalls
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Repairs403Labor503Torque3385Fluid7DTC1624Battery1Maintenance0Recalls4
P0253high severityPowertrain

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

on 2021 Honda Civic 1.5L I4 Turbo · FWD

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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