BMW DTC P3428 – Cylinder 4 Deactivation/Intake Valve Control Circuit High
DTC P3428 meaning on BMW
DTC P3428 on a BMW indicates an issue with the Cylinder 4 Deactivation/Intake Valve Control Circuit being detected as high. This means that there is a problem with the electrical circuit controlling the deactivation of cylinder 4 or the intake valve in the engine.
BMW DTC P3428 symptoms
Symptoms of DTC P3428 on a BMW may include:
- Check Engine Light illuminated
- Engine running rough or misfiring
- Reduced engine performance
- Increased fuel consumption
BMW DTC P3428 causes
Common causes of DTC P3428 on a BMW include:
- Faulty intake valve control solenoid
- Wiring or connector issues in the intake valve control circuit
- Engine control module (ECM) failure
- Mechanical issues with the intake valve itself
BMW DTC P3428 seriousness
DTC P3428 should be addressed promptly as it can lead to engine performance issues and potentially cause damage to the engine if left unresolved. Ignoring this fault code may result in further complications and increased repair costs.
How to diagnose DTC P3428 on BMW
To diagnose DTC P3428 on a BMW, you can perform the following steps:
- Use a diagnostic scanner to retrieve the fault code and any related codes
- Inspect the wiring and connectors in the intake valve control circuit for any damage or loose connections
- Test the intake valve control solenoid for proper operation
- Check the intake valve itself for any mechanical issues
- Verify the functionality of the ECM by performing a diagnostic scan
How to fix DTC P3428 on BMW
To fix DTC P3428 on a BMW, you can try the following solutions:
- Replace the faulty intake valve control solenoid
- Repair or replace any damaged wiring or connectors in the intake valve control circuit
- If the ECM is faulty, replace it with a new one and reprogram it as necessary
- If there are mechanical issues with the intake valve, repair or replace it as needed
How to erase DTC P3428 on BMW
To erase DTC P3428 on a BMW, you can use a diagnostic scanner to clear the fault code after the underlying issue has been resolved. Once the repair has been completed, the Check Engine Light should turn off, indicating that the fault code has been successfully erased.
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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