Page text (OCR transcript)
Turbo Control Circuit
CIRCUIT DESCRIPTION
[HINT] This turbocharger system has 3 control valves (Exhaust Bypass Valve, Exhaust Gas Control
Valve, Intake Air control Valve). Each valve is controlled by turbo pressure which is controlled
by VSV based on signals from ECM.
1. EXHAUST BYPASS VALVE
This valve controls the opening or closing of the exhaust bypass passage to ensure a smooth
transition from 1 turbo operation to 2 turbo operation.
2. EXHAUST GAS CONTROL VALVE
This valve controls the opening or closing of the No.2 exhaust passage in order to operate No.2
turbocharger.
3. INTAKE AIR CONTROL VALVE
This valve controls the opening or closing of the No.2 intake air passage in order to pass the
charged air from No.2 turbocharger.
Exhaust Gas Control Valve
Actuator
VSV
Exhaust Bypass Valve
Actuator
VSV
Intake Air Control
Valve
Actuator
VSV
FI6965
