188A4000 engine — Fiat 1.2 (1.2L)
1.2L · 60 hp
Engine overview
Vehicles with this engine
Factory specifications
Values from the manufacturer documentation for this engine.
Engine (general)
| Engine code | 188A4000 |
| Capacity | 1242 cc |
| Idle speed | 770 - 870 rpm |
| Inlet | 0.35 ± 0.05 mm |
| Exhaust | 0.45 ± 0.05 mm |
| Oil pressure | > 0.7 bar/rpm |
| Oil pressure | > 4.0 / 4000 bar/rpm |
| Engine code | 188.A.4000 |
| Idle speed | 750 ± 50 (-> 08/2001) 820 ± 50 (09/2001 ->) rpm |
| Inlet | 0.40 ± 0.05 mm |
| Oil pressure | > 0.7 / 750 ± 50 bar/rpm |
Engine (petrol)
| Fuel system (make and type) | Magnetti Marelli IAW 5AF |
| Number of cylinders | 4 |
| Firing order | 1 - 3 - 4 - 2 |
| Ignition coil resistance, primary | 0.52 - 0.62 ohms |
| Injector resistance | 13.8 - 15.2 ohms |
| Injection pressure/system pressure | 3.5 bar |
| Spark plugs (make and type) | Champion RC10YCC Bosch FR8DE NGK BKR5EZ |
| Spark plug gap | 0.90 mm |
| CO at fast-idle speed | < 0.3 % |
| Fast-idle speed | 2000 - 3000 rpm |
| Conditioning catalytic converter | 3 / 2000-3000 min/rpm |
| Lambda | 0.97 - 1.03 |
| Oil temperature during test | 85 °C |
| Closed-loop test at: | 650 - 920 rpm |
| CO exhaust gas | < 0.5 % |
| Fuel system (make and type) | MPI Weber-Marelli IAW 59F |
| Timing stroboscopic (before TDC) | 8 ± 3 / 750 ± 50 °/rpm |
| Ignition coil resistance, primary | 0.495 - 0.605 ohms |
| Ignition coil resistance, secondary | 6660 - 8140 ohms |
| Spark plugs (make and type) | NGK BKR 5EZ |
| Spark plug gap | 0.85 - 0.95 mm |
| CO exhaust gas | 0.5 % |
| CO at fast-idle speed | 0.3 % |
| Fast-idle speed | 3200 - 3700 rpm |
| Oil temperature during test | 60 °C |
| Closed-loop test at: | 600 - 1000 rpm |
Cooling system
| Cap pressure | 0.99 - 1.01 bar |
| Thermostat opens at | 87 ± 2 °C |
| Stage 1/Fan 1 | 95 °C |
| Stage 2/Fan 2 | 105 °C |
Electrical
| Battery | 40 Ah |
| Battery | 50 Ah |
| Alternator | 70 A |
| Alternator | 90 A |
Capacities
| Engine sump, incl. filter | 2.8 l |
| Manual transmission | C514 |
| Gearbox refill | 1.65 l |
| Cooling system | 4.8 l |
| Air-conditioner refrigerant | 500 ± 40 g |
| Air-conditioner compressor oil | 130 ml |
Torque settings
| Cylinder head bolts — Stage 1 | 30 Nm |
| Cylinder head bolts — Stage 2 | 90 ° |
| Cylinder head bolts — Stage 3 | 90 ° |
| Spark plugs | 25 Nm |
| Flywheel | 45 Nm |
| Main bearing cap | 20 Nm + 90° |
| Big-end bearing cap | 40 Nm |
| Manual transmission drain plug | 20 Nm |
| Manual transmission filler plug | 25 Nm |
| Front hub | 70 Nm + 55° ± 2° |
| Rear hub | 280 Nm |
| Wheel nuts | 80 - 95 Nm |
| Wheel nuts | 90 - 105 Nm |
Emissions
| Emission code | 70/220*2003/76B |
| Emission standard | Euro 4 |
| CO2 average | 129 g/km |
| CO | 0.263 g/km |
| HC | 0.058 g/km |
| NOx | 0.028 g/km |
| Emission code | 70/220*2001/100A |
| Emission standard | Euro 3 (05/2003 ->) |
| CO2 average | 142 g/km |
| CO | 0.322 g/km |
| HC | 0.059 g/km |
| NOx | 0.046 g/km |
| Emission code | 70/220*2001/100B |
| Emission standard | Euro 4 (02/2004 ->) |
| Emission standard | Euro 4 (07/2006 ->) |
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.