FRONT HEATED OXYGEN SENSOR (HO2S) REMOVAL/INSTALLATION [MZI-3.7 (PCM CONNECTOR (2 TYPES))]

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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.

Front HO2S (LH) Removal/Installation

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

2.  Remove the engine cover. (See ENGINE COVER REMOVAL/INSTALLATION [MZI-3.7].)

3.  Disconnect the front HO2S (LH) connector.

Note

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

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

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Note

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

5.  Install in the reverse order of removal.

Front HO2S (RH) Removal/Installation

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 front HO2S (RH) connector.

Note

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

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

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Note

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

5.  Install in the reverse order of removal.