| GM Ecotec 2.0DTI/2.2DTI | |
|---|---|
| Overview | |
| Manufacturer | General Motors |
| Production | 1997-2005 |
| Layout | |
| Configuration | Inline-4 |
| Displacement | 2.0–2.2 L (1,995–2,172 cc) |
| Cylinder head material | Aluminium |
| Valvetrain | SOHC 4 valves x cyl. |
| Combustion | |
| Operating principle | Diesel |
| Turbocharger | Garrett, Variable Geometry for 2.2 from 2001, intercooler |
| Fuel system | Direct injection |
| Fuel type | Diesel |
| Oil system | Wet sump |
| Cooling system | Water-cooled |
| Output | |
| Power output | 61–92 kW (83–125 PS; 82–123 hp) |
| Emissions | |
| Emissions target standard | Euro 3 |
| Chronology | |
| Successor | Fiat JTD engine (CDTI) |
GM referred to many of its diesel engines as Ecotec including the GM Medium Diesel engine (2013 onwards) and the Isuzu-derived Circle L engine. This page describes the SOHC 16 valve turbocharged engines which GM introduced in 1997. [1] and which were used extensively in its European models.
The engines used a single chain-driven camshaft and an aluminium cylinder head with a Bosch rotary high pressure injection pump. [2]
The 2.0 engine was available in two different power outputs, badged by Vauxhall Di and DTi, the lower powered version retaining 16 valves and a turbocharger, but lacking the intercooler. [3] The lower powered 82 hp (61 kW) version was soon replaced by the smaller and unrelated 1.7 litre Circle L engine. The higher powered version produced 100 hp (75 kW) and 230 N⋅m (170 lb⋅ft) of torque. [2]
The 2.2 engine was introduced as a 115 hp (86 kW) unit, but in late 2000 was updated to 125 hp (93 kW) with 280 N⋅m (207 lb⋅ft) of torque from just 1,500 rpm, rather than the previous 260 N⋅m (192 lb⋅ft) from 1,900 rpm. The update also included changes to the camshaft and pistons, and the newer unit was smoother. [4] This update also introduced pilot injection [5] and a variable geometry turbocharger [6]
These engines were replaced by the 1.9 litre GM/Fiat JTD.
GM referred to these engines using a six-character code, such as Y20DTH. The first letter is X for Euro 2 engines, and Y for those meeting the Euro 3 emissions standard. The two digits are 20 for 2 litres (actually 1,995 cc), and 22 for 2.2 litres (actually 2,171 cc). The next two letters are always DT. The final letter is L if it lacks an intercooler, H if it has an intercooler, and R if it has both an intercooler and a variable geometry turbocharger.
Saab referred to the engine as a D223L, regardless of whether it was a Y22DTH or a Y22DTR.