P0046
Turbo/Supercharger Boost Control Solenoid Circuit Range/Performance
2002-2003 Mazda Protege5 2.0L I4
Moderate SeverityPowertrainGeneric (SAE)
Description
The boost control solenoid is not responding within expected parameters.
Symptoms
- Check Engine Light
- Overboosting or underboosting
- Reduced power
- Surging
Common Causes
- Sticking solenoid
- Vacuum leak
- Wastegate stuck
- Boost pressure sensor fault
Diagnostic Steps
- Monitor boost pressure vs commanded
- Test solenoid operation
- Check vacuum lines
- Inspect wastegate
Repair Notes
Replace solenoid or repair wastegate.
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
P0046 on Other Vehicles
Common Questions
What does code P0046 mean on a 2002-2003 Mazda Protege5?
P0046 stands for "Turbo/Supercharger Boost Control Solenoid Circuit Range/Performance". The boost control solenoid is not responding within expected parameters.
What are the symptoms of P0046 on a Mazda Protege5?
Common symptoms of P0046 include: Check Engine Light, Overboosting or underboosting, Reduced power, Surging.
What causes P0046 on a 2002-2003 Mazda Protege5?
Common causes of P0046 include: Sticking solenoid, Vacuum leak, Wastegate stuck, Boost pressure sensor fault.