Air Fuel Ratio (A/F) Sensor Removal/Installation

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.

Remove the battery cover. (See BATTERY REMOVAL/INSTALLATION .)
Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION .)
Remove the plug hole plate. (See PLUG HOLE PLATE REMOVAL/INSTALLATION .)
Disconnect the ventilation hose which is connected to the cylinder head cover.
Disconnect the A/F sensor connector.
Remove the A/F sensor using the SST.

Fig 1: Air Fuel Ratio sensor With Torque Specification
Courtesy of MAZDA MOTORS CORP.
Install in the reverse order of removal.