Warm up the engine to an oil temperature of +60°C, coolant +80°C.
For 1.2-/1.3-l engines, the oil pressure sensor is located on the right front in the direction of travel. For 1.6- / 1.8-l engines - on the right, behind.
Remove wiring from sensor (arrow).
Unscrew the sensor.
Screw in a pressure gauge instead.
Start the engine.
At idle, with a warm engine, the oil pressure should not fall below 150 kPa (1.5 bar), otherwise check the lubrication system (pump, bearings, etc).
Unscrew the pressure gauge, screw in the sensor with a new copper sealing ring, connect the electrical wiring.
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