BMW DTC P0251 – Injection Pump Fuel Metering Control ‘A’ (Cam/Rotor/Injector)
DTC P0251 meaning on BMW
DTC P0251 on a BMW indicates an issue with the Injection Pump Fuel Metering Control ‘A’ (Cam/Rotor/Injector). This fault code is triggered when the Engine Control Module (ECM) detects a problem with the fuel metering control circuit related to the injection pump.
BMW DTC P0251 symptoms
Symptoms of DTC P0251 on a BMW may include:
- Engine misfires
- Decreased engine performance
- Difficulty starting the engine
- Increased fuel consumption
- Check Engine Light (CEL) illuminated on the dashboard
BMW DTC P0251 causes
Common causes of DTC P0251 on a BMW include:
- Faulty injection pump
- Issues with the fuel metering control circuit
- Wiring or connector problems
- Defective camshaft position sensor
BMW DTC P0251 seriousness
DTC P0251 should not be ignored as it can lead to poor engine performance, increased fuel consumption, and potential engine damage if left unresolved. It is recommended to address this issue promptly to prevent further complications.
How to diagnose DTC P0251 on BMW
To diagnose DTC P0251 on a BMW, a mechanic would typically perform the following steps:
- Use a diagnostic scanner to retrieve the fault codes stored in the ECM
- Inspect the injection pump and related components for any visible damage or wear
- Check the wiring and connectors for any signs of corrosion or disconnection
- Test the camshaft position sensor for proper operation
How to fix DTC P0251 on BMW
To fix DTC P0251 on a BMW, the following steps may be taken:
- Replace the faulty injection pump if necessary
- Repair or replace any damaged wiring or connectors in the fuel metering control circuit
- Replace the camshaft position sensor if found to be defective
- Clear the fault codes from the ECM after completing the repairs
How to erase DTC P0251 on BMW
To erase DTC P0251 on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the ECM. After completing the necessary repairs to address the underlying issue causing the fault code, clearing the codes will reset the system and turn off the Check Engine Light.
Recommended tools & DTC Scanners for BMW
Best Diagnostic App for modern BMWs: BimmerLink
Recommended Bluetooth adapter for Bimmerlink: OBDLink CX
Cable adapter for Bimmerlink: Enet Cable USB Type C
For older BMWs we recommend: Autel AutoLink AL319 (2024 version)
Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter
Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.