Contents: General information ↳ Functioning of the rev limiter ↳ Fuel pressure ↳ Fuel injectors ↳ Idle speed control valve ↳ Idle speed increase valve ↳ Crankshaft speed/position sensor ↳ Camshaft Position Sensor ↳ Intake Air Temperature Sensor ↳ Throttle potentiometer ↳ Power steering hydraulic pressure… ↳ Tightening torques for connections ↳
General information
| System type | With sequential fuel injection and electronic control |
| Recommended fuel (minimum octane rating) | 95 RON |
| Idle speed: | |
| 4-cylinder engines: | |
| Adjustable - nominal (±50 rpm): | |
| Models with non-automatic transmission | 880 rpm* |
| Models with automatic transmission | 710 rpm* |
| Non-adjustable - basic (only models produced before 07.1996) | 1500 rpm* |
| V-shaped 6-cylinder engines: | |
| Adjustable - nominal (±50 rpm | 725 rpm* |
| Carbon monoxide content in exhaust gases: | |
| 4-cylinder engines, no more | 0.5%* |
| V-shaped 6-cylinder engines, no more | 0.5%* |
*Parameters are for reference only (not adjustable)
Functioning of the rev limiter
| Disabling fuel injectors: | |
| Automatic transmission (in position "N") | 4100 rpm |
| Automatic transmission (in other positions) | 6800 rpm (approx.) |
| Non-automatic transmission | 6800...7100 rpm |
Fuel pressure
| Adjustable fuel pressure (idle): | |
| Pressure regulator (vacuum hose connected) | 2.1±0.2 bar |
| Pressure regulator (vacuum hose disconnected) | 2.7±0.2 bar |
Note: After switching off the ignition, the system pressure must remain at 1.8 bar for at least 5 minutes. On a hot engine, the pressure may increase during this check, but not more than 2.7 bar. The pressure regulator (after connection) must not allow higher pressure.
Fuel injectors
| Resistance | 13.7...15.2 ohm |
Idle speed control valve
| Resistance | 6...14 ohm |
Idle speed increase valve
| Resistance | 50...120 ohm |
Crankshaft speed/position sensor
| Resistance | 200...450 ohm |
Camshaft Position Sensor
| Resistance | 200...900 ohm |
Intake Air Temperature Sensor
| Resistance: | |
| at -40°C | 860...900 kOhm |
| at 20°C | Z5...40 kOhm |
| at 100°C | 1.9...2.5 kOhm |
| at 120°C | 1.0...1.3kOhm |
Throttle potentiometer
| Resistance (see text) | 4000...6000 ohm |
Power steering hydraulic pressure sensor
| Response pressures: | |
| Contact opening - infinite resistance | 31.5±3.5 bar |
| Contact closure - resistance 0...2.5 ohm | 13.5±24.0 bar |
Tightening torques for connections
| Name | Nm |
| Fasteners for the intake air duct chamber to the intake manifold | 4 |
| Throttle body to intake manifold screws | 10 |
| Idle Speed Control Valve Bolts | 6 |
| Fuel Pressure Regulator Bolts: | |
| 4-cylinder engines: | |
| models produced before 07.1997 | 6 |
| models produced since 07.1997 | 10 |
| V-shaped 6-cylinder engines | 6 |
| Relief valve bolts (V-6 engines) | 8 |
| Fuel injector bolts | 6 |
| Fuel line to intake manifold bolts | 10 |
| Threaded couplings of injection and drain pipes on the fuel line | 27 |
| Intake Air Temperature Sensor | 23 |
| All bolts and nuts of the exhaust system | 40 |
| Camshaft Position Sensor Screw | 21 |
| Crankshaft Speed/Position Sensor: | |
| Screw for fixing the sensor to the bracket | 8 |
| Screw for fastening the bracket to the cylinder block | 21 |