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.

CAUTION:

Do not allow flammable objects such as the taping for bundling the wiring harness to come into contact with the exhaust system such as the exhaust manifold and silencer which reach high temperatures. Otherwise, it could cause fire damage.

Disconnect the negative battery cable. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
Lift up the vehicle.
Remove the tire (FR). (See GENERAL PROCEDURES (SUSPENSION) .)
Partially peel back the front mudguard No. 2 (RH). (See FRONT MUDGUARD REMOVAL/INSTALLATION .)
Remove the front splash shield No. 1 (RH). (See FRONT SPLASH SHIELD No. 1 REMOVAL/INSTALLATION .)
Remove the front crossmember under cover. (See FRONT CROSSMEMBER UNDER COVER REMOVAL/INSTALLATION .)
Disconnect the A/F sensor connector.
Remove the clip from the bracket.

Courtesy of MAZDA MOTORS CORP.
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.