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Oxygen Sensor: Testing and Inspection
INSPECT HEATER RESISTANCE OF HEATED OXYGEN SENSORS a.
Disconnect the heated oxygen sensor connector.
b.
Using an ohmmeter, measure the resistance between terminals +B and HT.
Resistance:
-
11-16 Ohm at 20°C(68°F) -
23-32 Ohm at 800°C (1,472°F) If resistance is not as specified, replace the heated oxygen sensor.
c.
Reconnect the heated oxygen sensor connector.
