BMW DTC P0664 – Intake Manifold Tuning Valve Control Circuit Low (Bank 2)
DTC P0664 meaning on BMW
The Diagnostic Trouble Code (DTC) P0664 for BMW refers to the Intake Manifold Tuning Valve Control Circuit Low on Bank 2. This code indicates that there is an issue with the control circuit of the intake manifold tuning valve on the second bank of the engine.
BMW DTC P0664 symptoms
Symptoms of DTC P0664 on a BMW may include:
- Check Engine Light illuminated on the dashboard
- Reduced engine performance
- Engine stalling or rough idling
- Decreased fuel efficiency
BMW DTC P0664 causes
Common causes of DTC P0664 on a BMW include:
- Faulty intake manifold tuning valve
- Wiring or connector issues in the control circuit
- ECU (Engine Control Unit) malfunction
BMW DTC P0664 seriousness
While DTC P0664 may not cause immediate harm to the vehicle, it can lead to reduced engine performance and fuel efficiency if left unresolved. It is recommended to address this issue promptly to prevent further complications.
How to diagnose DTC P0664 on BMW
To diagnose DTC P0664 on a BMW, you can follow these steps:
- Use an OBD-II scanner to retrieve the fault code and check for any additional codes.
- Inspect the intake manifold tuning valve and its wiring for any visible damage or corrosion.
- Test the control circuit for continuity and proper voltage using a multimeter.
- Check the ECU for any stored error codes related to the intake manifold tuning valve.
How to fix DTC P0664 on BMW
To fix DTC P0664 on a BMW, you can try the following solutions:
- Replace the faulty intake manifold tuning valve with a new one.
- Repair or replace any damaged wiring or connectors in the control circuit.
- If the ECU is found to be faulty, consider reprogramming or replacing it.
How to erase DTC P0664 on BMW
To erase DTC P0664 on a BMW, you can use an OBD-II scanner to clear the fault code from the ECU’s memory. After addressing the underlying issue causing the fault code, clearing it from the system should reset the Check Engine Light.
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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