GDI Piezoelectric Injector Driver Circuit Fault
2006-2011 BMW 328i 3.0L I6
Description
The piezoelectric fuel injector driver circuit has a fault. Piezo injectors use crystal stack expansion for ultra-fast, precise fuel delivery in advanced GDI systems.
Symptoms
- Check Engine Light
- Misfire on affected cylinder
- Rough idle
- Reduced power
- Fuel smell from exhaust
- Catalyst damage risk if prolonged
Common Causes
- Piezo driver circuit failure in PCM
- Injector piezo stack degradation
- Wiring open or short to injector
- Connector pin corrosion
- Injector capacitance out of range
Diagnostic Steps
- Test injector capacitance with specialized tool
- Check driver circuit output waveform
- Measure injector wiring resistance
- Inspect connector for corrosion
- Swap injectors between cylinders to confirm
Repair Notes
Replace piezoelectric injector. PCM replacement if driver circuit is faulty. Piezo injectors require specialized diagnostic equipment and are not interchangeable with solenoid-type GDI injectors.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P3660 on Other Vehicles
Common Questions
What does code P3660 mean on a 2006-2011 BMW 328i?
P3660 stands for "GDI Piezoelectric Injector Driver Circuit Fault". The piezoelectric fuel injector driver circuit has a fault. Piezo injectors use crystal stack expansion for ultra-fast, precise fuel delivery in advanced GDI systems.
What are the symptoms of P3660 on a BMW 328i?
Common symptoms of P3660 include: Check Engine Light, Misfire on affected cylinder, Rough idle, Reduced power, Fuel smell from exhaust, Catalyst damage risk if prolonged.
What causes P3660 on a 2006-2011 BMW 328i?
Common causes of P3660 include: Piezo driver circuit failure in PCM, Injector piezo stack degradation, Wiring open or short to injector, Connector pin corrosion, Injector capacitance out of range.