BMW DTC P3143 – Cylinder 11 High Pressure Injector Low Side Booster Time Error
DTC P3143 meaning on BMW
The Diagnostic Trouble Code (DTC) P3143 on a BMW indicates a Cylinder 11 High Pressure Injector Low Side Booster Time Error. This means that there is an issue with the high-pressure fuel injector in cylinder 11, specifically related to the low side booster time error.
BMW DTC P3143 symptoms
Symptoms of the BMW DTC P3143 may include rough idling, engine misfires, decreased fuel efficiency, loss of power, and potentially an illuminated check engine light on the dashboard.
BMW DTC P3143 causes
The causes of the BMW DTC P3143 can vary, but common reasons include a faulty high-pressure fuel injector, wiring issues, a malfunctioning fuel injector control module, or a problem with the engine control unit (ECU).
BMW DTC P3143 seriousness
The seriousness of the BMW DTC P3143 lies in the potential for engine performance issues and decreased fuel efficiency. Ignoring this DTC can lead to further damage to the engine and other components over time.
How to diagnose DTC P3143 on BMW
To diagnose the DTC P3143 on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the fault code and then perform a thorough inspection of the high-pressure fuel injector in cylinder 11, along with checking the wiring and related components for any faults.
How to fix DTC P3143 on BMW
Fixing the BMW DTC P3143 usually involves replacing the faulty high-pressure fuel injector in cylinder 11, addressing any wiring issues, or replacing the fuel injector control module if necessary. It is recommended to follow the manufacturer’s repair procedures and use genuine BMW parts for the best results.
How to erase DTC P3143 on BMW
Once the underlying issue causing the DTC P3143 on a BMW has been fixed, the fault code can be cleared using a diagnostic scanner. This will reset the check engine light and erase the DTC from the vehicle’s memory.
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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