HEATED OXYGEN SENSOR (HO2S) REMOVAL/INSTALLATION [MZI-3.7]

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  Warning
  • A hot engine and exhaust system can cause severe burns. Turn off the engine and wait until they are cool before removing the exhaust system.

HO2S (LH) Removal/Installation

1. Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZI-3.7].)

2. Disconnect the HO2S (LH) connector.

  Note
  • If necessary, lubricate the HO2S (LH) with Penetrating and Lock Lubricant loosen to aid in removal.

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

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  Note
  • Apply a light coat of anti-seize lubricant to the threads of the HO2S.

4. Install in the reverse order of removal.

HO2S (RH) Removal/Installation (L.H.D.)

1. Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZI-3.7].)

2. Remove the cowl panel for easier access. (See COWL PANEL REMOVAL/INSTALLATION.)

3. Disconnect the HO2S (RH) connector.

  Note
  • If necessary, lubricate the HO2S (RH) with Penetrating and Lock Lubricant loosen to aid in removal.

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

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  Note
  • Apply a light coat of anti-seize lubricant to the threads of the HO2S.

5. Install in the reverse order of removal.

HO2S (RH) Removal/Installation (R.H.D.)

1. Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZI-3.7].)

2. Remove the following part for easier access:

  1. Cowl panel (See COWL PANEL REMOVAL/INSTALLATION.)
  2. Engine hanger installation bolt, and power steering oil pump hose out of the way (See POWER STEERING OIL PUMP REMOVAL/INSTALLATION [R.H.D.].)

3. Disconnect the HO2S (RH) connector.

4. Remove the front wheel and tire (RH). (See GENERAL PROCEDURES (SUSPENSION).)

5. Remove the splash shield (RH). (See SPLASH SHIELD REMOVAL/INSTALLATION.)

6. Disconnect the front drive shaft (RH) from the transaxle side. (See FRONT DRIVE SHAFT REMOVAL/INSTALLATION.)

  Note
  • If necessary, lubricate the HO2S (RH) with Penetrating and Lock Lubricant loosen to aid in removal.

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

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  Note
  • Apply a light coat of anti-seize lubricant to the threads of the HO2S.

8. Install in the reverse order of removal.