BMW DTC P0252 – Injection Pump Fuel Metering Control ‘A’ Range/Performance (Cam/Rotor/Injector)
DTC P0252 meaning on BMW
The Diagnostic Trouble Code (DTC) P0252 for BMW refers to ¨Injection Pump Fuel Metering Control ‘A’ Range/Performance (Cam/Rotor/Injector).¨ This code indicates that there is an issue with the fuel metering control system, specifically related to the cam, rotor, or injector within the injection pump.
BMW DTC P0252 symptoms
Symptoms of DTC P0252 on a BMW may include:
- Engine misfires
- Decreased engine performance
- Difficulty starting the engine
- Reduced fuel efficiency
- Check Engine Light (CEL) illuminated on the dashboard
BMW DTC P0252 causes
Common causes of DTC P0252 on a BMW include:
- Faulty fuel injector
- Issues with the camshaft or rotor within the injection pump
- Problems with the fuel metering control system
- Wiring or connector issues related to the injection pump
BMW DTC P0252 seriousness
DTC P0252 should be taken seriously as it can lead to poor engine performance, reduced fuel efficiency, and potential engine damage if left unresolved. Ignoring this code may result in further issues and costly repairs down the line.
How to diagnose DTC P0252 on BMW
To diagnose DTC P0252 on a BMW, a mechanic would typically perform the following steps:
- Use a diagnostic scanner to retrieve the fault code and related data
- Inspect the fuel injector, camshaft, and rotor for any signs of damage or wear
- Check the wiring and connectors associated with the injection pump
- Perform fuel pressure and flow tests to ensure proper fuel delivery
How to fix DTC P0252 on BMW
To fix DTC P0252 on a BMW, the following steps may be taken:
- Replace the faulty fuel injector, camshaft, or rotor if necessary
- Repair any wiring or connector issues related to the injection pump
- Clean or replace the fuel metering control system components
- Reset the fault code and perform a test drive to ensure the issue is resolved
How to erase DTC P0252 on BMW
To erase DTC P0252 on a BMW, the fault code can be cleared using a diagnostic scanner. After fixing the underlying issue causing the code, the scanner can be used to reset the code and clear it from the vehicle’s memory. It is important to ensure that the repair has been successful before clearing the code to prevent it from reoccurring.
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
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