Circuit/System Description

WARNING: This page is about a different variant/trim than selected.

For an overview of the component/system, refer to Compressor Air Intake Turbocharger System Description

Circuit	Description
Ignition	Supplied from a fuse.
Control	The output circuit is switched to ground to activate the component.

Component	Description
K20 Engine Control Module	The control module contains a microprocessor used to process input data to control outputs. The control module controls a series of actuators to ensure optimal engine performance. The control module does this by reading values from a variety of sensors, interprets the data and adjusts the engine actuators accordingly.
Q40A Turbocharger Bypass Valve Solenoid - Bank 1 Q40B Turbocharger Bypass Valve Solenoid - Bank 2	The turbocharger bypass valve is a pressure relief valve in the intake system. It short-circuits the inlet and the outlet of the fresh air side of the turbocharger. This is used to maintain the rotational energy of the turbine when the throttle valve is quickly closed and the compressed air would have nowhere to go. The bypass valve allows the air to be pumped in circles which avoids pressure spikes.

Component

Description

K20 Engine Control Module

The control module contains a microprocessor used to process input data to control outputs.
The control module controls a series of actuators to ensure optimal engine performance. The control module does this by reading values from a variety of sensors, interprets the data and adjusts the engine actuators accordingly.

Q40A Turbocharger Bypass Valve Solenoid - Bank 1
Q40B Turbocharger Bypass Valve Solenoid - Bank 2

The turbocharger bypass valve is a pressure relief valve in the intake system. It short-circuits the inlet and the outlet of the fresh air side of the turbocharger. This is used to maintain the rotational energy of the turbine when the throttle valve is quickly closed and the compressed air would have nowhere to go. The bypass valve allows the air to be pumped in circles which avoids pressure spikes.