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

Our certified mechanics come to you · Get a fair and transparent estimate upfront

Red-stars EXCELLENT RATING ON

Cost of diagnosing the P0258 code

P0258 is a diagnostic trouble code (DTC) for "Injection Pump Fuel Metering Control “B” Low (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. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.00 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
Ford$20.00
Toyota$20.00
BMW$20.00
SCHEDULE P0258 DIAGNOSTIC Get a fair and transparent estimate upfront

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.

trouble codes
P0258
Check Engine Light

No more waiting rooms! Our mechanics will come to you to diagnose and fix the P0258 code.

SCHEDULE P0258 DIAGNOSTIC
Get a $20 credit for the follow-up repair

Recent Check Engine Light is on Inspection reviews

Excellent Rating


YourMechanic Check Engine Light is on Inspection Service

Average Rating

4.8/5

Number of Reviews

5,170

Rating Summary
4,765
197
50
27
131
4,765
197
50
27
131

Fred

16 years of experience
364 reviews
Fred
16 years of experience
Mercedes-Benz E500 - Check Engine Light is on - Conroe, Texas
Fred was very friendly and thorough to get to the root of the issue. Even when he could not find a fault to why my engine light was on, he went above and beyond to make absolutely sure that the concern was minimized. Turns out, all that needed to be done was a reset but his diagnostic to address my issues was very intricate and appreciated.

David

17 years of experience
37 reviews
David
17 years of experience
Chevrolet Cruze - Check Engine Light is on - Aurora, Colorado
David was on time, professionalisms & honest! I would definitely request him again and pass along to friends/family.

John

18 years of experience
18 reviews
John
18 years of experience
Dodge Ram 1500 - Check Engine Light is on - Memphis, Tennessee
Demonstrated good integrity. Advised me when work I thought needed done was unnecessary and was helpful in identifying issues that needed to be addressed

Robert

21 years of experience
17 reviews
Robert
21 years of experience
Chrysler 200 - Check Engine Light is on - Fort Worth, Texas
Robert did a good job working on my car and letting me know what's needed to keep my car driving smoothly.


More related articles

P0772 OBD-II Trouble Code: Shift Solenoid E Stuck On
P0772 means that a problem in the shift solenoid was detected, usually in the form of an incorrect gear ratio due to low or dirty transmission fluid.
P2402 OBD-II Trouble Code: EVAP Leak Detection Pump Control Circuit High
What the P2402 code means? P2402 is an OBD-II generic code for the engine control module (ECM) detecting the evaporative system leak...
P2158 OBD-II Trouble Code: Vehicle Speed Sensor 'B'
P2158 P2158 code definition Vehicle Speed Sensor 'B' What the P2158 code means This trouble code indicates that the powertrain control module has detected a variation in the reference voltage of the vehicle speed sensor 'B' in reference to the...

Related questions

I am receiving an engine power reduced message on my dash board. Car will still cut on and is driving. I have an 06 Chevy Colbolt

The issue you are writing in about is common enough that a specific diagnostic, namely a Reduced Engine Power Warning Light Diagnostic is performed by technicians dispatched by YourMechanic. If you request that diagnostic, the responding certified mechanic will get...

My truck surges at low and idol speeds. Cold or hot. Sometimes quits when put in gear. Very low speed has a miss.

Hello and thank you for contacting YouMechanic. When you unplug the temperature sending unit the problem goes away but the engine light comes on. Check the plug to the sending unit for any corrosion or debris. Look at the pins...

Check Engine Light does not come on even though there are trouble codes present

The pink/light green wire in ECM pin 2 on the connector will ground the wire internally to the ECM to turn on the Check Engine Light. You could test the wire with the key on and it should have battery...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com