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Home >> Hyundai >> 1986 >> Excel GLS, 4D Hatchback, Automatic, KM170-3AP2 >> Repair and Diagnosis >> Engine Performance >> System >> Feedback Carburetor System >> Testing >> Oxygen Sensor Test
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Oxygen Sensor Test

After engine is at normal operating temperature, idle engine at 1300 RPM. Check voltage of oxygen sensor. It should be 0-1 volt and 2.7 volts pulsating. If voltage of oxygen sensor is not to specification, replace oxygen sensor.