Rodeo S 2WD L4-2559cc 2.6L SOHC (4ZE1) (1997)
Oxygen Sensor: Service and Repair
REMOVAL
1. Disconnect the negative battery cable.
2. Locate the two oxygen sensors.
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Bank 1 sensor 1 is mounted on the exhaust pipe ahead of the catalytic converter.
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Bank 1 sensor 2 is mounted behind the catalytic converter.
3. Disconnect the pigtail from the wiring harness.
NOTE: The pigtail is permanently attached to the sensor. Be careful not to pull the wires out.
CAUTION: Do not use a torch to remove a Heated Oxygen Sensor (HO2S) unless the sensor is being replaced. Using a torch could damage the
sensor.
4. Remove the sensor from the exhaust pipe.
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Because of the expansion and contraction of the metal in the exhaust system over time, this may be difficult if the engine temperature is below
48°C (120°F).