VW AKP — 1.4L Engine
1.4L · 54 hp
Engine overview
Factory specifications
Values from the manufacturer documentation for this engine.
Engine (general)
| Engine code | AKP |
| Capacity | 1390 cc |
| Idle speed | 600 - 800 rpm |
| Normal | 10 - 15 bar |
| Minimum | 7.0 bar |
| Differential limit between cylinders | < 3 bar |
| Oil pressure | 2.0 / 2000 bar/rpm |
Engine (petrol)
| Fuel system (make and type) | Bosch Motronic ME 7.5.10 |
| Number of cylinders | 4 |
| Firing order | 1 - 3 - 4 - 2 |
| Injector resistance | 12.0 - 17.0 ohms |
| Ignition coil resistance, secondary | 4000 - 6000 ohms |
| Spark plugs (make and type) | NGK PZFR5D-11 |
| Spark plug gap | 1.0 - 1.1 mm |
| Fuel pump pressure | 3.0 bar |
| Injection pressure/system pressure | 2.5 3.0 bar |
| CO at fast-idle speed | < 0.3 % |
| Fast-idle speed | 2500 - 2800 rpm |
| Lambda | 0.97 - 1.03 |
| Lambda change (Delta Lambda) | 0.03 |
| Oil temperature during test | 80 °C |
| Closed-loop test at: | 640 - 1040 rpm |
| Closed-loop test at: | 500 - 900 rpm |
| Conditioning catalytic converter | 2 min |
| CO exhaust gas | < 0.5 % |
Cooling system
| Cap pressure | 1.4 - 1.6 bar |
| Thermostat opens at | 84 - 98 °C |
| Stage 1/Fan 1 | 92 - 97 °C |
| Stage 2/Fan 2 | 99 - 105 °C |
Electrical
| Battery | 44 / 62 Ah |
| Alternator | 70 / 90 A |
Brakes
| Disc thickness, front | 18.0 mm |
| Disc thickness, front, min. | 16.0 mm |
| Disc thickness, rear | 10.0 mm |
| Disc thickness, rear, min. | 8.0 mm |
| Drum diameter, rear | 180.0 mm |
| Drum diameter, rear, max. | 181.5 mm |
| Drum diameter, rear | 200.0 mm |
| Drum diameter, rear, max. | 201.5 mm |
Steering and wheel alignment
| Toe-in, front | 0°00' ± 10' ° |
| Camber, front | -0°25' ± 20' ° |
| Castor, front | 1°20' ± 30' ° |
| Max. difference left side - right side | 30' ° |
| Toe-in, rear | 0°20' ± 10' mm |
| Camber, rear | -1°40' ± 20' ° |
Wheels and tyres
| Tyre size | 175/65 R13 |
| Front tyre pressure | 2.0 - 2.2 bar |
| Rear tyre pressure | 1.9 - 2.5 bar |
| Tyre size | 185/55 R14 78H |
| Tyre size | 195/45 R15 78H |
| Front tyre pressure | 2.2 - 2.4 bar |
| Rear tyre pressure | 2.2 - 2.8 bar |
| Spare tyre size | T105/70 R14 84M |
Capacities
| Engine sump, incl. filter | 3.2 l |
| Manual transmission | 085 |
| Gearbox refill | 2.7 l |
| Cooling system | 5.6 l |
| Air-conditioner refrigerant | 700 - 750 g |
| Air-conditioner compressor oil | 135 ml |
Torque settings
| Cylinder head bolts — Stage 1 | 30 Nm |
| Cylinder head bolts — Stage 2 | 90 ° |
| Cylinder head bolts — Stage 3 | 90 ° |
| Spark plugs | 30 Nm |
| Flywheel | 60 Nm + 90° Nm |
| Big-end bearing cap | 20 Nm + 90° Nm |
| Oil plug | 30 Nm |
| Oxygen sensor | 50 Nm |
| Knock sensor | 20 Nm |
| Crankshaft gearwheel | 90 Nm + 90° Nm |
Emissions
| Emission code | 70/220*1998/69 |
| Emission standard | Euro 2 |
| CO2 average | 146 - 151 g/km |
| CO | 0.251 g/km |
| HC | 0.043 g/km |
| NOx | 0.023 g/km |
Engine codes in the same family
The same code prefix usually means the same block with a different output, fuel or model year. Procedures are often shared — check the code on the engine plate.
Workshop procedures for this engine
Step-by-step procedures from the workshop database.
- Checking throttle valve control part
- Checking Lambda probe and Lambda regulation before catalyst
- Removing and installing parts of the injection system
- Checking Lambda probe and Lambda regulation after catalyst
- Erasing learnt values and adapting engine control unit to throttle valve control part and exhaust gas recirculation valve
- Checking catalyst
- Checking Lambda probe heating before catalyst
- Checking intake manifold pressure sender
- Exhaust manifold, front exhaust pipe and catalyst with attachments
- Removing and installing fuel tank with its attachments and fuel filter
- Checking intake air system for leaks (unmetered air)
- Checking engine operating mode
- Checking signal from power steering pressure switch
- Checking Lambda probe heating after catalyst
- Checking potentiometer for exhaust gas recirculation (G212)
- Dismantling and assembling air cleaner
- Replacing camshaft oil seal
- Checking tank venting valve
- Dismantling and assembling intake manifold
- Removing and installing parts of the ignition system
- Checking ageing of Lambda probe before catalyst
- Checking electronic accelerator warning lamp
Got a AKP problem? Ask for free.
Describe the symptoms — TorqFix replies with a diagnosis cited from verified workshop data.
Get free diagnosis →Who makes these pages, and how
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.
Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.
Seen a figure that does not match your manual? Write to us — we correct it and note when. support@torqfix.com
The story behind TorqFix →Workshop data on this page last updated 22 Aug 2026.