Skip the auto shop - Our mechanics make house calls

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

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How to Buy Fuel Treatments
Adding a fuel additive to your gas tank when you fill up is one way to clean vital engine parts of deposits, improve the performance of your engine,...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...


Related questions

Q: Why am I getting rich codes in my 2012 Chevrolet Silverado

Claimed by Robert Tomashek

Q: I have the p10ED what is it

Although P10E(x) codes relates to problems with the Valvetronic gear (cam timing sensors and actuators), I am unable to find a P01ED code specifically. The computer will store information that can be read with a professional-level scanner to help pinpoint...

Q: obd trouble code p0014 , hard up shifting

Hello. The P0014 code and hard up shifting condition is a common problem on this engine. Typically, it is either the solenoid, or the connection on the solenoid. If both of those have been replaced, then the exhaust cam...