What's a Boost Solenoid?

A boost controller is a device to control the boost level produced in the intake manifold of a turbocharged or supercharged engine by affecting the air pressure delivered to the pneumatic and mechanical wastegate actuator.

What is the purpose of boost solenoid?

The turbo boost solenoid (a.k.a. wastegate solenoid) monitors the amount of boost generated in a turbocharged motor. Faulty turbo solenoids won't properly monitor the amount of boost generated in a turbocharged motor, which will decrease the life of the turbo and motor.

How do I know if my boost solenoid is bad?

What are the symptoms of a bad Turbocharger Boost Pressure Solenoid? If the boost pressure control solenoid fails to operate, the check engine light will illuminate, especially under hard or sustained acceleration.