OBD Guide

P0255

Injection Pump Fuel Metering Control A Intermittent (Cam/Rotor/Injector)

P0255 is an OBD-II diagnostic trouble code meaning: Injection Pump Fuel Metering Control A Intermittent (Cam/Rotor/Injector). Common causes: open or short circuit in the injection pump control circuit, oxidation of fuel injection pump connector contacts. Estimated repair cost: $56โ€“333.

Severity
๐Ÿ”ด High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56โ€“333 (est.)

Symptoms

  • Unstable engine operation
  • Power Loss
  • Dips during acceleration
  • Difficulty starting
  • Increased fuel consumption

Causes

  • Open or short circuit in the injection pump control circuit
  • Oxidation of fuel injection pump connector contacts
  • Faulty injection pump control solenoid
  • Mechanical wear of fuel injection pump
  • Power or grounding problems
  • ECU malfunction

How to Fix

  1. Check the integrity of the wiring harness to the injection pump
  2. Clean and check fuel injection pump connectors
  3. Check control solenoid resistance
  4. Check fuel pressure and fuel injection pump performance
  5. Scan the ECU for additional errors
  6. If necessary, replace the fuel injection pump or its components

Related codes

Error P0255 by Vehicle Brand

FAQ

What does the P0255 code mean?

P0255 is an OBD-II diagnostic trouble code that indicates: Injection Pump Fuel Metering Control A Intermittent (Cam/Rotor/Injector)

What causes a P0255 error code?

The most common causes of P0255 include: Open or short circuit in the injection pump control circuit; Oxidation of fuel injection pump connector contacts; Faulty injection pump control solenoid; Mechanical wear of fuel injection pump.

How do I fix a P0255 diagnostic trouble code?

To fix P0255: Check the integrity of the wiring harness to the injection pump. Clean and check fuel injection pump connectors. Check control solenoid resistance. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0255?

Limited driving only, diagnose soon

How much does it cost to fix P0255?

The estimated repair cost for P0255 is $56โ€“333. Actual cost depends on your vehicle, location, and labor rates.

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