BMW DTC P1328 – Knock/Combustion Vibration Sensor 2 Circuit High (Bank 1)
DTC P1328 meaning on BMW
DTC P1328 on a BMW indicates a Knock/Combustion Vibration Sensor 2 Circuit High fault in Bank 1. This fault code is triggered when the engine control module (ECM) detects a high voltage signal from the knock sensor 2 in Bank 1, which is responsible for detecting abnormal combustion or knocking in the engine.
BMW DTC P1328 symptoms
Symptoms of DTC P1328 on a BMW may include engine knocking or pinging noises, reduced engine performance, rough idling, decreased fuel efficiency, and in some cases, the Check Engine Light may illuminate on the dashboard.
BMW DTC P1328 causes
The common causes of DTC P1328 on a BMW include a faulty knock sensor, wiring issues in the sensor circuit, poor electrical connections, or a malfunctioning engine control module (ECM).
BMW DTC P1328 seriousness
While DTC P1328 may not cause immediate engine failure, it is important to address this issue promptly to prevent potential damage to the engine over time. Ignoring this fault code can lead to reduced engine performance and efficiency.
How to diagnose DTC P1328 on BMW
To diagnose DTC P1328 on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the fault code and perform a visual inspection of the knock sensor and its wiring. They may also conduct a resistance test on the sensor and check for any loose or damaged connections.
How to fix DTC P1328 on BMW
Fixing DTC P1328 on a BMW usually involves replacing the faulty knock sensor, repairing any damaged wiring or connections, or reprogramming the engine control module (ECM) if necessary. It is recommended to use genuine BMW parts for a reliable repair.
How to erase DTC P1328 on BMW
After fixing the underlying issue causing DTC P1328 on a BMW, the fault code can be erased using a diagnostic scanner. By clearing the code, the Check Engine Light should turn off, indicating that the issue 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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