Turbocharger

Turbocharging system, overview





1- EVAP canister
2- Vent line
3- Check-valve
^ For EVAP canister system
4- Turbocharger
^ The boost pressure regulation valve and vacuum diaphragm for boost pressure regulation are part of the exhaust turbocharger and cannot be replaced individually.
5- Combination valve
^ For Secondary Air Injection (AIR) system
^ Checking, Refer to Emission Control Systems.
6- Fuel pressure regulator
7- To cylinder head cover
^ Crankcase breather valve
8- To brake booster
9- Vacuum booster
10- Vacuum reservoir
^ To separate chambers
11- To diagnostic pump
12- Check-valve
^ Bypass to vacuum booster
13- Check-valve
^ For engine vacuum control
14- Crankcase ventilation
15- Secondary Air Injection (AIR) solenoid valve -N112-
^ Checking, Refer to Emission Control Systems.
16- Check-valve
^ For EVAP canister system
17- Check-valve
^ For diagnostic pump
18- Charge air pressure sensor -G31-
^ Checking, Refer to Turbo Boost Sensor.
19- Charge air cooler
20- Throttle valve control module
21- Intake manifold
22- Recirculating valve for turbocharger -N249-
^ Checking, Refer to Intake Air Control Valve/Turbocharger.
23- Pressure unit
^ For Boost
^ Pressure Regulation Valve
^ Part of turbocharger, cannot be replaced
24- Wastegate bypass regulator valve -N75-
^ Valve is activated (pulsed) by the Engine Control Module (ECM)
^ Closed when no voltage present, limited by charge pressure
^ Checking activation:
Refer to Air Bypass Valve.
25- Deceleration shut-off valve
26- Pressure regulation valve
^ For crankcase ventilation
27- Secondary Air Injection (AIR) pump motor V101-*
^ Checking function, Refer to Emission Control Systems.
28- Evaporative Emission (EVAP) canister purge regulator valve -N80-
^ Checking:
Refer to Emission Control Systems.