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P0250 Code – What Does It Mean & How To Fix It

This is one of the most frequent OBD2 trouble codes. Read the full article below to know what it means, how to fix it, and what other codes may show related to it.


The Fuel Injection Pump Control Circuit is the focus of the diagnostic issue code P0250. When the circuit in charge of managing the fuel injection pump encounters a difficulty, the Engine Control Module (ECM) stores this code. Problems with this circuit have a big effect on fuel supply and engine performance.


More precisely, the P0250 code indicates a malfunction or an issue of the circuit controlling the fuel injection pump. Problems in the delivery of fuel may occur, possibly leading to engine performance problems.


Effective diagnosis and repair of the P0250 code depend on an understanding of its possible causes. Typical reasons include:

  • Faulty Fuel Injection Pump: The fuel injection pump itself may be malfunctioning or damaged, causing issues in the control circuit.
  • Wiring Issues: The electrical flow might be hampered by corroded or damaged wiring and connections in the fuel injection pump control circuit.
  • Faulty ECM:  An erroneous P0250 code might occasionally be caused by an ECM that isn’t working properly.


Finding the problem can be made easier by being aware of the symptoms linked to the P0250 error number. Typical signs include:

  • Reduced engine power
  • Poor acceleration
  • Decreased fuel efficiency
  • Illuminated check engine light
  • Smoke from the exhaust


The P0250 code must be correctly diagnosed using a methodical methodology. The steps are as follows:

  • Code Scanning: Retrieve the P0250 code and any supplementary codes using an OBD-II scanner.
  • Visual Inspection: Check for damage or corrosion on the fuel injection pump and associated wiring.
  • Testing the Pump: Check the fuel injection pump to make sure it operates correctly and maintains pressure.
  • Wiring Inspection: Verify the circuit’s wiring and connections for continuity and fix any broken parts.
  • ECM check: Consider testing or replacing the ECM once other explanations have been ruled out.

Common mistakes

When working with the P0250 error code, avert making these typical mistakes:

  • Neglecting Other Codes: Don’t focus solely on P0250; check for additional codes that may provide valuable diagnostic information.
  • Replacing Parts Unnecessarily: Proper diagnosis is key to avoiding unnecessary part replacements. Always follow a systematic approach.

How serious is this?

The seriousness of the P0250 code will be determined by the extent to which there is a problem. Although it does not necessarily render your vehicle totally unable to run, this condition may result in severe engine performance issues and potentially costly repairs that must be addressed if the problem is not remedied. Failure to read the code may increase fuel consumption and damage engine components.

What repairs can fix the codeS?

repair manuals

Once the problem has been identified, the necessary repairs can be made:

  • Replace Fuel Injection Pump: If the pump is found to be faulty, it should be replaced with a new or rebuilt unit.
  • Repair or Replace wire: In the fuel injection pump control circuit, repair or replace any frayed, corroded, or damaged wire and connections.
  • ECM Replacement: If it is found that the ECM is the problem, replace or reprogram it as appropriate.

Related codes

P0250 may be accompanied by other associated codes such as the following:

  • P0245: Turbocharger Wastegate Solenoid “B” High Circuit
  • P0251: Injection Pump Fuel Metering Control “A” (Cam/Rotor/Injector)
  • P0252: Injection Pump Fuel Metering Control “A” Range/Performance (Cam/Rotor/Injector)


Due to its potential for concern, the DTC code P0250 may be effectively addressed by appropriate diagnosis and timely repair. Long term, ignoring this code is likely to increase engine stress, fuel consumption, and the cost of repairs. To restore optimum vehicle performance and fuel supply, contact professional help immediately if you notice the P0250 code or suspect any problems associated with it.

P0250 Code – What Does It Mean & How To Fix It