Hyundai Accent Quiz
Fuel system

Oxygen Sensor

In this manual: Fuel system
Owner's Manual — 155SOHC Engines — 75DOHC Engines — 49Lubrication System — 14Cooling System — 23Emission Control — 3PCV Valve — 5Fuel system — 44Ignition System — 12Clutch — 17Manual transmission — 14Automatic transmission — 24Axle Shafts and Drive Shafts — 17Suspension — 31Steering — 45Brake System — 39Body — 23Air Conditioning System — 32Electrical Equipment — 54Appendix — 9Wiring Diagrams — 3
~1min read
В зависимости от содержания кислорода в отработавших газах датчик кислорода индуцирует

Depending on the oxygen content in the exhaust gas, the oxygen sensor generates a voltage from 0 to 1 V. Based on this signal, the engine control unit changes the injector opening time and the air-fuel ratio of the mixture. For complete combustion of the air-fuel mixture and to prevent harmful substances from appearing in the exhaust gas, 1 part of fuel must correspond to 14.7 parts of air by weight.

The oxygen sensor is equipped with a heater, which maintains the sensor temperature within a specified range when the engine operates under all operating conditions. Maintaining the specified sensor temperature allows the system to enter closed loop operation faster and to operate at idle.

Inspection

PROCEDURE

Before testing, warm up the engine until the engine coolant temperature reaches 80–95 °C.
Measure the sensor output voltage with an accurate digital voltmeter.

If the sensor output voltage differs from the specified value, replace the sensor.
Torque: 50–60 N·m

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