K20A6 engine — CN 2.0 (2L)
2L · 155 hp
Engine overview
Vehicles with this engine
Factory specifications
Values from the manufacturer documentation for this engine.
Engine (general)
| Engine code | K20A6 |
| Capacity | 1998 cc |
| Idle speed | 650 ± 50 (720 ± 50) rpm |
| Automatic | 650 ± 50 (800 ± 50) rpm |
| Inlet | 0.23 ± 0.02 mm |
| Exhaust | 0.30 ± 0.02 mm |
| Minimum | 9.3 bar |
| Differential limit between cylinders | < 2.0 bar |
| Oil pressure | 0.7 / 650 3.0 / 3000 bar/rpm |
Engine (petrol)
| Number of cylinders | 4 |
| Firing order | 1-3-4-2 |
| Timing stroboscopic (before TDC) | 8 ± 2 / 650 °/rpm |
| Spark plugs (make and type) | NGK ZFR6K-11 DENSO KJ20DR-M11 |
| Spark plug gap | 1.0 - 1.1 mm |
| Injection pressure/system pressure | 3.4 - 3.9 bar |
| CO exhaust gas | < 0.1 % |
| Lambda | 0.97 – 1.03 |
| CO at fast-idle speed | < 0.3 % |
Cooling system
| Cap pressure | 0.93 - 1.23 bar |
| Thermostat opens at | 78 ± 2 °C |
| Thermostat fully open at | 90 °C |
| Fan on at | 91 - 95 °C |
Electrical
| Battery | 45 Ah |
| Alternator | 105 A |
Capacities
| Engine sump, incl. filter | 4.2 l |
| Manual transmission | ARK7, AST5 |
| Gearbox refill | 1.9 l |
| Automatic transmission | MCTA |
| Gearbox refill | 2.8 l |
| Gearbox refill after overhaul | 6.5 l |
| Power steering | 1.1 l |
| Cooling system | 4.5 l |
| Cooling system (automatic transmission) | 4.4 l |
| Air-conditioner refrigerant | 525 ± 25 g |
| Air-conditioner compressor oil | 140 ± 10 ml |
Torque settings
| Cylinder head bolts — Stage 1 | 39 Nm |
| Cylinder head bolts — Stage 2 | 90 ° |
| Cylinder head bolts — Stage 3 | 90 ° |
| Cylinder head bolts — Stage 4 | 90 ° |
| Spark plugs | 18 Nm |
| Wheel nuts | 108 Nm |
| Front hub | M22: 181 M24: 245 Nm |
| Wheel bearing unit to hub | 64 Nm |
| Rear hub | 245 Nm |
Emissions
| Emission code | 70/220*2001/100B |
| Emission standard | Euro 4 |
| CO2 average | 182 - 190 g/km |
| CO | 0.430 - 0.500 g/km |
| HC | 0.040 - 0.050 g/km |
| NOx | 0.020 g/km |
| HC NOx | 0.050 - 0.060 g/km |
| Emission code | 70/220*2003/76B |
| CO2 average | 171 - 190 g/km |
| CO2 average | 200 g/km |
| CO | 0.300 g/km |
| HC | 0.040 g/km |
| NOx | 0.010 g/km |
| HC NOx | 0.050 g/km |
| CO2 average | 196 - 203 g/km |
| CO | 0.295 - 0.358 g/km |
| HC | 0.040 - 0.042 g/km |
| NOx | 0.012 - 0.013 g/km |
| CO2 average | 196 g/km |
| CO | 0.295 g/km |
| NOx | 0.012 g/km |
Workshop procedures for this engine
Step-by-step procedures from the workshop database.
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TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.
The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.
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The story behind TorqFix →Workshop data on this page last updated 22 Aug 2026.