Oil Pressure Sensor - Replacement
The oil pressure sensor on 1.1/1.3 l engines is installed on the cylinder head on the carburetor side, and on 1.5/1.6/1.8 l engines - at the rear of the head, on the flywheel side. Since August 1982, two sensors have been installed on all models: the second sensor (with white insulator) is included in the signal buzzer circuit and is triggered when the pressure drops below 1.8 bar at 2150 rpm. On 1.5, 1.6, 1.8 l engines, this sensor is installed on the base of the oil filter. The sensor with the brown insulator controls the signal lamp and is triggered at a pressure of 0.3 bar. Replacement is the same for both sensors.
1. Disconnect the wire from the terminal on the sensor.
2. Unscrew the sensor block using a spanner and remove the sensor block from the cylinder head or oil filter base.
3. Install the sensors in reverse order.
Coolant Temperature Sensor - Replacement
1. Remove the radiator cap (expansion tank). If the engine is hot, take precautions (grasp the plug with a thick cloth, turn it 90° and let the pressure in the system drop, then remove the plug).
2. Disconnect the wire from the sensor.
3. Remove the sensor from the thermostat housing.
CAUTION: During this operation, some coolant will spill out, so place a large container under the engine. After replacing the sensor, top up the cooling system as described in Chapter "Cooling system".
4. Install the sensor in reverse order.
Visitor comments