The voltage at the sensor output is 800 mV if the fuel mixture is richer than theoretical and the voltage is 100 mV if the fuel mixture is leaner (higher oxygen concentration in the exhaust gases).
Based on this data, the engine control unit changes the fuel ratio in the fuel-air mixture.
Examination
Note.
- 1. Before checking, warm up the engine until the coolant temperature is 80–95°C.
- 2. Using an accurate digital voltmeter, measure the sensor output voltage.
[The basis of the material is information from the website: www.hyundaibook.ru]
1. Disconnect the connector from the oxygen sensor and connect a voltmeter to the oxygen sensor connector.
2. Measure the output voltage of the oxygen sensor by changing the engine speed. If the sensor output voltage is different from the required value, replace the sensor.
Tightening torque: 50–60 Nm