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 wiring harness to come into contact with the exhaust manifold and silencer.
NOTE:
If penetrant lubricating spray penetrates the airflow hole of the HO2S, it could cause interference with the HO2S function.
When removing the HO2S, wrap a rag around the lower position so that penetrant lubricating spray does not get sprayed into the airflow hole.


1. Disconnect the negative battery cable..
2. Lift up the vehicle.
3. Remove the floor under cover. (vehicles with floor under cover).
4. Remove the insulator and brace bar. (2WD).
5. Disconnect the HO2S connector.
6. Remove the clip A from the bracket.

7. Remove the clip B.
8. Remove the HO2S using the SST
.

9. Install in the reverse order of removal.
Heated Oxygen Sensor (HO2 S) Inspection
Heated Oxygen Sensor (HO2 S)Fuel and Engine Exhaust Precautions
Fuel Requirements
Vehicles with catalytic converters or oxygen sensors must use ONLY UNLEADED FUEL,
which will reduce exhaust emissions and keep spark plug fouling to a minimum.
Your Mazda will perform best with fuel listed in the table.
Fuel with a rating lower than 87 octane (91 RON) could ...
PID/Data Monitor Inspection [Adaptive Front Lighting System (Afs)]
1. Connect the M-MDS to the DLC-2.
2. After the vehicle is identified, select the following items from the initialization
screen of the M-MDS.
a. Select “DataLogger”.
b. Select “Modules”.
c. Select “AFS”.
3. Select the applicable PID from the PID table.
4. Verify the PID da ...
Climate Control Unit Disassembly/Assembly [Manual Air Conditioner]
1. Disassemble in the order indicated in the figure.
1
Dial
2
Airflow mode wire
(See Wire Removal Note.)
(See Wire Installation Note.)
3
Air mix wire
(See Wire Removal Note.)
(See Wire Installation Note ...