Turbocharger (TC) Wastegate

ENGINE CONTROL COMPONENTS

Turbocharger (TC) Wastegate
The turbocharger wastegate is a mechanically activated valve located in the turbine housing of the turbocharger. It is opened and closed by the vacuum operated turbocharger wastegate actuator dependent on the amount of boost the powertrain control module (PCM) to is requesting for the current driving conditions. The wastegate allows exhaust gases to bypass the turbine to vary the speed of the compressor wheel in conjunction with the variable vanes used on the turbine. This configuration provides for more precise control of the turbocharger boost output.