Exception in rendering!

Message: window is not defined

ReferenceError: window is not defined
    at new c (/tmp/execjs20161209-102681-t00qi3js:136:3912)
    at m.mountComponent (/tmp/execjs20161209-102681-t00qi3js:47:15602)
    at /tmp/execjs20161209-102681-t00qi3js:49:31860
    at a.r.perform (/tmp/execjs20161209-102681-t00qi3js:47:12503)
    at Object.a [as renderToString] (/tmp/execjs20161209-102681-t00qi3js:49:31821)
    at r (/tmp/execjs20161209-102681-t00qi3js:50:21164)
    at Object.S.ReactOnRails.serverRenderReactComponent (/tmp/execjs20161209-102681-t00qi3js:32:6073)
    at eval (eval at <anonymous> (/tmp/execjs20161209-102681-t00qi3js:173:8), <anonymous>:10:23)
    at eval (eval at <anonymous> (/tmp/execjs20161209-102681-t00qi3js:173:8), <anonymous>:17:3)
    at /tmp/execjs20161209-102681-t00qi3js:173:8

P0258 OBD-II Trouble Code: Injection Pump Fuel Metering Control “B” Low (Cam/Rotor/Injector)

Check Engine Light

P0258 code definition

Injection Pump Fuel Metering Control “B” Low (Cam/Rotor/Injector)

What the P0258 code means

P0258 is an OBD-II generic code for the injection pump fuel metering control valve circuit having low or no current flow when the engine control module (ECM) does not receive a signal from the fuel enrichment valve.

What causes the P0258 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 low or out of specifications, then it sets the code P0258 and turns on the Check Engine Light.

  • The problem can be due to an open circuit in the wiring or connector to the injection pump.

  • The battery is below 8 volts or the injector power relay has an open circuit.

What are the symptoms of the P0258 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 P0258 code?

  • Scans codes and documents the code in the ECM

  • Diagnose code as per the manufacturer's pinpoint test to verify the pump voltage supply and circuits are good to prevent replacing a good injection pump

  • Tests the battery to make sure it does not fall below 8 volts during cranking or vehicle operation

  • Verifies voltage is above 8 volts getting to the fuel injection pump fuel control circuit

Common mistakes when diagnosing the P0258 code?

  • Clearing ECM memory codes before checking the freeze frame data of the failure

  • Failing to clear ECM codes after the P0258 codes are fixed and then retesting the system

  • Failing to make sure the batteries are fully charged and above 8 volts during the starting of the engine

How serious is the P0258 code?

Code P0258 is an indication that the fuel injection pump cannot control fuel into the engine and the power supply to the injection pump must be repaired or the pump must be replaced to fix the code and drive symptoms.

What repairs can fix the P0258 code?

  • Replace the fuel injection pump
  • Clear codes and road tests the vehicle to verify the code does not return
  • Replaces the fuel filter and contaminated fuel before the injection pump is replaced
  • Repairs or replaces the battery power supply to the injection pump circuit

Additional comments for consideration regarding the P0258 code

Code P0258 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. The vehicle batteries cannot fall below 8 volts to supply enough voltage to the fuel injection pump fuel control valve, and if it falls below the 8 volts, it can generate the failure code. Check the batteries first.

Need help with a P0258 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

Post a question and get free advice from our certified mechanics.

ASK A QUESTION

More related articles

Veteran and Military Driver Laws and Benefits in New Mexico
The state of New Mexico offers a number of benefits and perks for those Americans who have either served in an Armed Forces branch...
P2422 OBD-II Trouble Code: Evaporative Emissions Control System (EVAP) Vent Valve Stuck Closed
Diagnostic Trouble Code (DTC): P2422 P2422 code definition Evaporative Emissions Control System (EVAP) Vent Valve Stuck Closed Related Trouble Codes: P2441: EVAP Vent Valve Stuck Open EVAP trouble...
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...


Related questions

Q: I need to know the diagnostic procedure for dtc p0717. Want to test wires before taking out transmission

If the sensor only has two wires, it is a reluctant AC sensor. If the sensor has three wires then it is a hall effect DC sensor. A two wire sensor will produce a sine wave signal: '()(-)()(-)(_)' or steady...

Q: Check Engine Light and Thermo Light are on - 2009 Dodge Caliber

Hi there. From the description you have provided, your vehicle's losing speed and Thermo Light and Check Engine Light coming on are probably all related. It could be that the thermostat is stuck closed, not allowing the coolant/antifreeze to circulate...

Q: Stalls when turning or at a stop

Hi there. The first step is to check for any problem codes stored by engine management. This can save a lot of time money when diagnosing drive-ability problems. Most auto parts stores will do this for free. Several problems could...