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Home >> Mazda >> 2000 >> B2500 SE Cab Plus 2WD L4-2.5L VIN C >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Oxygen Sensor >> Service and Repair
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Oxygen Sensor: Service and Repair

1. Remove the air cleaner outlet tube.




2. Disconnect the HO2S electrical connector.




3. Remove the heated oxygen sensors (HO2S) from the exhaust manifolds.
- If necessary, lubricate the heated oxygen sensors to assist in removal.

4. Raise and support the vehicle.




5. Disconnect the HO2S electrical connector.




6. Remove the heated oxygen sensors from the exhaust pipe using the Oxygen Sensor Wrench.
- If necessary, lubricate the heated oxygen sensors to assist in removal.

NOTE: Apply a light coat of anti-seize compound to the threads of the heated oxygen sensors.







7. Install in reverse order of removal.

Tightening torque:
{ 36 - 46 Nm, 27 - 33 ft.lb }