Skip the auto shop - Our mechanics make house calls
  1. Home
  2. Articles
  3. P0252 OBD-II Trouble Code: Injection Pump Fuel Metering Control “A” Range/Performance (Cam/Rotor/Injector)

P0252 OBD-II Trouble Code: Injection Pump Fuel Metering Control “A” Range/Performance (Cam/Rotor/Injector)

Check Engine Light

P0252 code definition

Injection Pump Fuel Metering Control “A” Range/Performance (Cam/Rotor/Injector)

What the P0252 code means

P0252 is an OBD-II generic code for the injection pump fuel metering control valve circuit when the engine control module (ECM) did not receive a signal from the valve indicating movement.

What causes the P0252 code?

  • The engine control module (ECM) monitors the fuel injection pump metering valve position current feedback when commands to control the valve are sent to the valve from the ECM.

  • The ECM attempts to move the valve, and if the current is out of specifications, then it sets the code P0252 and turns on the Check Engine Light.

What are the symptoms of the P0252 code?

  • The Check Engine Light will be illuminated and the code is set in ECM memory as a fault.

  • The engine may run too lean or too rich depending on the fuel valve failed position.

  • The engine may have reduced engine power and rough running conditions.

How does a mechanic diagnose the P0252 code?

  • Scans codes and documents the code in the ECM

  • Diagnose code as per the manufacturer's pinpoint test to verify the fuel injection pump failure

  • One manufacturer suggests to clear codes, and if the code returns, to replace the injection pump.

Common mistakes when diagnosing the P0252 code

  • Clearing ECM memory codes before checking the freeze frame data of the failure
  • Failing to clear ECM codes after the P0252 codes are fixed and retesting the system

How serious is the P0252 code?

Code P0252 is an indication that the fuel injection pump cannot control fuel into the engine and must be replaced to fix the code and drive symptoms.

What repairs can fix the P0252 code?

Additional comments for consideration regarding the P0252 code

Code P0252 is generated by a diesel engine vehicle that has an injection pump that cannot control the amount of fuel injected into the cylinders and will cause the code to set. Some vehicles may have a fuel valve that can be replaced without replacing the entire fuel injection pump. Follow the manufacturer pinpoint tests for diagnosis and repair for your vehicle.

Need help with a P0252 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

More related articles

P2159 OBD-II Trouble Code: Vehicle Speed Sensor B Range/Performance
Diagnostic Trouble Code (DTC): P2159 P2159 code definition Vehicle Speed Sensor B Range/Performance...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
Auto Safety Tips
Driving is more than a way to get from point A to point B. Owning and driving a car can also be a highly enjoyable experience. Whether a person is driving...


Related questions

Q: Wont start

You should have the vehicle scanned for codes to see if you have codes to the camshaft or crankshaft sensors. Either of these may cause the no spark condition. If the fuel pump regulator is bad, then you would...

Q: Check engine light on and got the codes P0700 and P0731

Diagnostic trouble code P0700 and code P0731 indicates that there is a fault in your car's "automatic transmission control system". Although there could be a faulty "part," (such as a shift solenoid or speed sensor), there are some preliminary checks...

Q: The emergency brake is not working and multiple brake lights are on

The OBD-II error code P-0501 is a generic code that indicates an issue with the transmission speed sensor. This component is vital in the operation of the ABS and traction control system, which is probably why the light is illuminated....