BMW DTC P314E – Cylinder 10 High Pressure Injector Low Side/High Side Electrical
DTC P314E meaning on BMW
The DTC P314E code on a BMW indicates an issue with the high-pressure injector in cylinder 10. Specifically, it points to a problem with the electrical circuit on either the low side or high side of the injector.
BMW DTC P314E symptoms
Symptoms of the BMW DTC P314E code may include rough idling, misfiring, loss of power, decreased fuel efficiency, and potentially an illuminated check engine light on the dashboard.
BMW DTC P314E causes
The causes of the DTC P314E code on a BMW can vary, but common reasons include a faulty high-pressure injector, wiring issues in the injector circuit, a defective injector driver module, or a problem with the engine control module (ECM).
BMW DTC P314E seriousness
Ignoring the DTC P314E code on a BMW can lead to poor engine performance, reduced fuel efficiency, and potential damage to the engine over time. It is important to address this issue promptly to prevent further complications.
How to diagnose DTC P314E on BMW
To diagnose the DTC P314E code on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the fault codes stored in the ECM. They would then inspect the high-pressure injector in cylinder 10, check the wiring and connections in the injector circuit, and test the injector driver module for proper function.
How to fix DTC P314E on BMW
Fixing the DTC P314E code on a BMW may involve replacing the high-pressure injector in cylinder 10 if it is found to be faulty. Additionally, repairing any damaged wiring or connections in the injector circuit, replacing the injector driver module if necessary, and ensuring the ECM is functioning correctly can help resolve the issue.
How to erase DTC P314E on BMW
Once the underlying issue causing the DTC P314E code on a BMW has been addressed and fixed, the code can be erased using a diagnostic scanner. By clearing the fault codes from the ECM, the check engine light should turn off, indicating that the problem has been resolved.
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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