Turbocharger - Vehicles With INGENIUM I4 2.0L Diesel 163PS And 180PS Engines
| ITEM | DESCRIPTION |
|---|---|
| 1 | Exhaust gas outlet connection |
| 2 | Variable Geometry Turbine (VGT) actuator |
| 3 | Oil filter and housing assembly |
| 4 | Oil feed pipe |
| 5 | Clean air inlet connection |
| 6 | Charge air outlet connection |
| 7 | Oil drain pipe |
| 8 | Exhaust gas inlet connection |
The turbocharger is attached to the exhaust manifold with three studs and nuts and a multi-layer steel gasket.
The turbocharger with Variable Geometry Turbine (VGT) has variable vanes controlled by an electric actuator.
The actuator is controlled by the Powertrain Control Module (PCM) via Pulse Width Modulation (PWM) directly from the PCM.
The VGT actuator contains a sensor which supplies its position information to the PCM.
By varying the VGT it is possible to control the energy extracted by the turbine and thus the boost pressure generated by the compressor. At low speed, shaft energy can be increased by closing the vanes, while at high speed shaft energy can be decreased by opening the vanes. Thus the vanes are controlled to deliver the required boost pressure. Also to increase exhaust manifold pressure and increase High Pressure (HP) Exhaust Gas Recirculation (EGR) mass flow rate.
A heatshield is installed over the turbocharger and exhaust manifold to protect other components and to prevent accidental contact with the hot exhaust components.