Mazda 3 Service Manual: Air Fuel Ratio (A/F) Sensor Removal/Installation [Mzr 2.0, Mzr 2.5]
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.
1. Remove the battery cover..
2. Disconnect the negative battery cable..
3. Remove the plug hole plate..
4. Remove the air cleaner assembly. (MZR 2.5).
5. Disconnect the A/F sensor connector.
6. Remove the A/F sensor using the SST
.
MZR 2.0
MZR 2.5
7. Install in the reverse order of removal.
Air Fuel Ratio (A/F) Sensor Inspection [Mzr 2.0, Mzr 2.5]
A/F Sensor Inspection
1. Connect the M-MDS to the DLC-2.
2. Switch the ignition to ON.
3. Warm up the engine to normal operating temperature.
4. Access the following PIDs using the M-MDS.. ...
Camshaft Position (CMP) Sensor Inspection [Mzr 2.0, Mzr 2.5]
Visual Inspection
CAUTION:
When replacing the CMP sensor, make sure there is no foreign material on
it such as metal shavings. If it is installed with foreign material, the sensor
outpu ...
Other materials:
Seat Belt Inspection
Belt
1. Verify that the belt is installed properly with no twists or kinks.
2. Verify that there is no damage to the seat belt and no deformation of the
metal fittings.
If there is any malfunction, replace the seat belt.
ELR
Except 5HB (rear center seat belt)
1. Verify tha ...
Locking Lug Nuts
If your vehicle has Mazda optional
antitheft wheel lug nuts, one on each
wheel will lock the tires and you must
use a special key to unlock them. This
key will attach to the lug wrench.
Register them with the lock manufacturer
by filling out the card provided in the
glove compartment and ma ...
Lights-On Reminder
The lights-on reminder is operable when
the time setting *1 of the auto headlight off
function is off.
If lights are on and the ignition is switched
to ACC or the ignition is switched off, a
continuous beep sound will be heard when
the driver's door is opened.
*1 If the light switch is le ...