Turbo/Supercharger Boost Control Module Performance
2001-2005 BMW 325xi E46 2.5L I6 AWD
Description
The PCM detected the turbo/supercharger boost control module is not responding correctly to commanded boost levels. The module regulates wastegate or bypass valve position to control boost pressure.
Symptoms
- Check Engine Light
- Reduced boost pressure
- Loss of power under acceleration
- Turbo lag increased
- Poor fuel economy
Common Causes
- Faulty boost control module
- Wastegate actuator failure
- Vacuum/pressure line leak
- Corroded module connector
- PCM communication error
Diagnostic Steps
- Read freeze frame data and boost PIDs
- Command boost control module through scan tool
- Inspect vacuum and pressure lines to wastegate
- Check boost control module connector and wiring
- Measure actual vs commanded boost pressure
Repair Notes
Replace boost control module or repair wiring. Verify wastegate actuator operation after repair.
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
P3000 on Other Vehicles
Common Questions
What does code P3000 mean on a 2001-2005 BMW 325xi E46?
P3000 stands for "Turbo/Supercharger Boost Control Module Performance". The PCM detected the turbo/supercharger boost control module is not responding correctly to commanded boost levels. The module regulates wastegate or bypass valve position to control boost pressure.
What are the symptoms of P3000 on a BMW 325xi E46?
Common symptoms of P3000 include: Check Engine Light, Reduced boost pressure, Loss of power under acceleration, Turbo lag increased, Poor fuel economy.
What causes P3000 on a 2001-2005 BMW 325xi E46?
Common causes of P3000 include: Faulty boost control module, Wastegate actuator failure, Vacuum/pressure line leak, Corroded module connector, PCM communication error.