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Home >> Isuzu >> 2003 >> Ascender 2WD V8-5.3L >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Oxygen Sensor >> Service and Repair >> HO2S - Bank 1 Sensor 1
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HO2S - Bank 1 Sensor 1

Heated Oxygen Sensor (HO2S) Replacement Bank 1 Sensor 1

Removal Procedure
1. Remove the catalytic converter.
2. Disconnect the connector position assurance (CPA) connector.

NOTE: Refer to Heated Oxygen and Oxygen Sensor Notice in Cautions and Notices.
Heated Oxygen and Oxygen Sensor Notice







3. Disconnect the heated oxygen sensor (HO2S) electrical connector (3).


Installation Procedure
1. Connect the HO2S electrical connector (3).
2. Connect the CPA connector.







3. Install the catalytic converter.