Y 22 XE Engine
The Y 22 XE engine is a further advancement of the OPEL ECOTEC engine generation and is based on the X 20 XEV engine, previously used in the Omega�B. The most significant new features in the Y 22 XE engine are the components which have been modified to satisfy the requirements of the D4 exhaust emissions standard.
The main differences between the Y 22 XE and the X 20 XEV engines are listed in the table below.
| X 20 XEV | Y 22 XE | |
|---|---|---|
| Capacity | 1998 cm 3 | 2198 cm 3 |
| Bore diameter | 86.0 mm | 86.0 mm |
| Stroke | 86.0 mm | 94.6 mm |
| Engine management system | Simtec 70 | Simtec 71 |
| Engine control unit | Conventional | Composite design |
| Throttle body | Conventional | Throttle valve module with electronic accelerator pedal |
| Accelerator pedal | with cable | with pedal sensor (electronic accelerator pedal) |
| Number of oxygen sensors | 1 | 2 |
| Catalytic converter | Main catalytic converter | Starting and main catalytic converters |