BMW DTC P144B – Fuel Level / Fuel Consumption Correlation
DTC P144B meaning on BMW
The DTC P144B on a BMW indicates a Fuel Level / Fuel Consumption Correlation issue. This fault code is triggered when the Engine Control Module (ECM) detects a discrepancy between the expected fuel level and the actual fuel consumption data.
BMW DTC P144B symptoms
Symptoms of a DTC P144B on a BMW may include:
- Check Engine Light (MIL) illuminated
- Inaccurate fuel gauge readings
- Poor fuel efficiency
- Engine running rough or stalling
BMW DTC P144B causes
Common causes of a DTC P144B on a BMW include:
- Faulty fuel level sensor
- Issues with the fuel pump
- Wiring or connection problems
- ECM software issues
BMW DTC P144B seriousness
While a DTC P144B may not cause immediate drivability issues, it is important to address this fault code promptly. Ignoring this issue can lead to inaccurate fuel level readings, potential fuel system problems, and reduced fuel efficiency.
How to diagnose DTC P144B on BMW
To diagnose a DTC P144B on a BMW, a mechanic may perform the following steps:
- Use a diagnostic scanner to retrieve the fault code and freeze frame data
- Inspect the fuel level sensor and related components for any visible damage or corrosion
- Check the fuel pump operation and fuel system pressure
- Perform a wiring inspection to identify any loose connections or shorts
How to fix DTC P144B on BMW
To fix a DTC P144B on a BMW, the following steps may be taken:
- Replace the faulty fuel level sensor if necessary
- Repair or replace any damaged wiring or connectors
- Address any fuel pump issues or malfunctions
- Update the ECM software to the latest version
How to erase DTC P144B on BMW
To erase a DTC P144B on a BMW, the fault code can be cleared using a diagnostic scanner. After the necessary repairs have been made, the code can be reset, and the Check Engine Light should turn off. It is important to ensure that the underlying issue causing the fault code has been resolved before clearing the code.
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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