P1028 – BMW DTC

BMW DTC P1028 – VVL-Self-Learning Function No Positions Stored (Bank 2)

DTC P1028 meaning on BMW

The Diagnostic Trouble Code (DTC) P1028 for BMW refers to the VVL (Variable Valve Lift) Self-Learning Function No Positions Stored on Bank 2. This code indicates that the engine control module has detected an issue with the self-learning function related to the variable valve lift system on the bank 2 side of the engine.

BMW DTC P1028 symptoms

Symptoms of BMW DTC P1028 may include:

• Check Engine Light (MIL) illuminated on the dashboard
• Reduced engine performance
• Engine running rough or misfiring
• Decreased fuel efficiency

BMW DTC P1028 causes

Common causes of BMW DTC P1028 may include:

• Issues with the variable valve lift system components
• Faulty sensors related to the VVL system
• Wiring or connection problems
• Software or programming issues in the engine control module

BMW DTC P1028 seriousness

While BMW DTC P1028 may not always result in immediate drivability issues, it is important to address this code promptly to prevent potential long-term damage to the engine and ensure optimal performance.

How to diagnose DTC P1028 on BMW

To diagnose BMW DTC P1028, a mechanic may perform the following steps:

1. Use a diagnostic scanner to retrieve the fault codes and freeze frame data
2. Inspect the variable valve lift system components for any visible damage or wear
3. Check the sensors and wiring related to the VVL system for proper operation
4. Perform a thorough inspection of the engine control module and related software

How to fix DTC P1028 on BMW

To fix BMW DTC P1028, the following steps may be taken:

1. Repair or replace any faulty components in the variable valve lift system
2. Address any issues with sensors or wiring related to the VVL system
3. Update or reprogram the engine control module software if necessary
4. Clear the fault codes and perform a test drive to ensure the issue has been resolved

How to erase DTC P1028 on BMW

To erase DTC P1028 on BMW, a mechanic can use a diagnostic scanner to clear the fault codes stored in the engine control module. After clearing the codes, it is recommended to perform a test drive to verify that the issue has been successfully 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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