P0254 OBD-II Trouble Code: Injection Pump Fuel Metering Control “A” High (Cam/Rotor/Injector)

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Cost of diagnosing the P0254 code

P0254 is a diagnostic trouble code (DTC) for "Injection Pump Fuel Metering Control “A” High (Cam/Rotor/Injector)". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $70.00. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $30.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.

Cars Estimate Credit towards follow-up repair Earliest Availability
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The P0254 Trouble Code indicates issues with the inject pump fuel metering control “A” high (cam/rotor/injector).

What the P0254 code means

When this code appears, it means that the powertrain control module has found an issue with the signal voltage that’s supplied to the electronic fuel control actuator, as well as the signal returned from the fuel metering control sensor. This code will only affect vehicles that are diesel powered. If the vehicle is not diesel, and this code still appears, it means that there is most likely a problem with the powertrain control module.

What causes the P0254 code?

A number of things could cause the P0254 code to appear including the following:

  • Dirty fuel filter
  • Clogged fuel filter
  • Open or shorted circuits
  • Open or shorted electrical connectors between fuel control actuator and the powertrain control module
  • Faulty control actuator driver in the powertrain control module

What are the symptoms of the P0254 code?

Those who have the P0254 code appear might not have many issues with their vehicle. In some cases, it will only show up as a stored code, and the Check Engine lamp might light. However, there can be more severe problems as well. The vehicle might be difficult to start, or it might not start at all. In addition, it could mean that there is excessive smoke coming from the exhaust. The engine might misfire, and it might also have trouble when accelerating.

How does a mechanic diagnose the P0254 code?

The mechanic will attach the OBD-II scanner to gather data from the car’s onboard computer. They will take note of the codes that are present, and then they will reset the codes. In some cases, the codes might have been triggered without there being anything actually wrong with the vehicle. They will then take the vehicle on a test drive to see if the code returns. If it does, they know that there is an actual problem with the vehicle, and then they will begin to look closer at the vehicle to find and repair the issue.

Common mistakes when diagnosing the P0254 code

As with the P0255 code, the common misdiagnosis with the P0254 code is that there is a problem with the injectors or the injector pump. These are often replaced without need when the code shows up. Instead, the problem usually lies with the fuel filter instead. Shorted or open wiring and connectors can be the actual cause of the problem as well.

How serious is the P0254 code?

The seriousness of the code depends on what’s really wrong with the vehicle. In some cases, the code will appear, but the vehicle will not have any other issues that the driver can find. However, the code could be indicative of a larger problem. As mentioned, the vehicle might have trouble starting in some cases. In other cases, it might not start at all. You never want to ignore this type of problem because it could mean trouble for your vehicle.

What repairs can fix the P0254 code?

The following are some of the repairs that can fix the P0254 code:

  • Check the vehicle with the OBD-II scanner
  • Reset the code, test the vehicle to see if the code returns
  • Check all wires and connectors to make sure they are attached and not corroded
  • Replace the fuel filter

Additional comments for consideration regarding the P0254 code

The P0254 code affects diesel vehicles only, unless there is an issue with the powertrain control module. While vehicles that have more than 100,000 miles on them may present false positives with the codes, it is still never something you should ignore. You should speak with a mechanic about the code and the best course of action to have the problem fixed.

Need help with a P2660 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.

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