LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mazda >> 2007 >> CX-9 V6-3.5L >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Oxygen Sensor >> Service and Repair >> Front Heated Oxygen Sensor (HO2S)
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Front Heated Oxygen Sensor (HO2S)

FRONT HEATED OXYGEN SENSOR (HO2S) REMOVAL/INSTALLATION [MZI-3.5]

HO2S (LH) Removal/Installation
1. Disconnect the negative battery cable.
2. Remove the engine cover.
3. Disconnect the HO2S (LH) connector.

NOTE: It necessary, lubricate the HO2S with Penetrating and Lock Lubricant loosen to aid in removal.




4. Remove the HO2S (LH) using the SST.

NOTE: Apply a light coat of anti-seize lubricant to the threads at the HO2S.

5. Install in the reverse order of removal.

HO2S (RH) Removal/Installation
1. Disconnect the negative battery cable.
2. Remove the following part for easier access.
1. Remove the cowl panel.

3. Disconnect the HO2S (RH) connector.

NOTE: If necessary, lubricate the HO2S with Penetrating and Lock Lubricant loosen to aid in removal.




4. Remove the HO2S (RH) using the SST.

NOTE: Apply a light coat of anti-seize lubricant to the threads of the HO2S.

5. Install in the reverse order of removal.
scientia non olet · About LEMON Manuals