BMW DTC P1628 – Throttle Valve Actuator Spring Test Malfunction during Opening (Bank 1)
DTC P1628 meaning on BMW
DTC P1628 on a BMW indicates a Throttle Valve Actuator Spring Test Malfunction during Opening in Bank 1. This fault code is specific to issues related to the throttle valve actuator spring test malfunction during the opening process.
BMW DTC P1628 symptoms
Symptoms of BMW DTC P1628 may include:
- Engine hesitation or stalling
- Reduced engine power
- Check Engine Light (CEL) illuminated on the dashboard
- Difficulty accelerating
BMW DTC P1628 causes
Possible causes of BMW DTC P1628 include:
- Faulty throttle valve actuator
- Issues with the throttle valve actuator spring
- Wiring or connector problems in the throttle valve actuator circuit
- Software or calibration issues
BMW DTC P1628 seriousness
The seriousness of BMW DTC P1628 lies in the potential for drivability issues and engine performance problems. Ignoring this fault code can lead to further damage to engine components and may result in unsafe driving conditions.
How to diagnose DTC P1628 on BMW
To diagnose BMW DTC P1628, you can:
- Use a diagnostic scanner to retrieve the fault code and related data
- Inspect the throttle valve actuator and its components for any visible damage
- Check the wiring and connectors for any signs of wear or corrosion
- Perform a throttle valve actuator test using diagnostic equipment
How to fix DTC P1628 on BMW
To fix BMW DTC P1628, you may need to:
- Replace the faulty throttle valve actuator
- Repair or replace any damaged wiring or connectors in the circuit
- Update software or recalibrate the throttle valve actuator
- Perform a throttle valve actuator spring test to ensure proper functioning
How to erase DTC P1628 on BMW
To erase BMW DTC P1628, you can:
- Use a diagnostic scanner to clear the fault code after the repair has been completed
- Ensure that the issue causing the fault code has been resolved before clearing it
- Perform a test drive to confirm that the fault code does not return
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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