Mazda 3 Service Manual: Exhaust & Emissions

Valve Clearance Inspection [Mzr 2.0, Mzr 2.5]

1. Remove the battery cover.. 2. Disconnect the negative battery cable.. 3. Remove the plug hole plate.. 4. Disconnect the wiring harness. 5. Remove the ignition coils.. 6. Remove the spark ...

Exhaust System Inspection [Mzr 2.0, Mzr 2.5]

1. Start the engine and inspect each exhaust system component for exhaust gas leakage. If there is leakage, repair or replace the appropriate component.. ...

Other materials:

Center Cover Removal/Installation
1. Disconnect the negative battery cable.. 2. Remove the center panel.. 3. Remove the upper clumn cover.. 4. Remove the instrument cluster.. 5. Pull the center cover in the direction of arrow (1) shown in the figure, then remove the hooks. 6. Pull the center cover in the direction of ...

Airflow Mode Actuator Inspection [Full Auto Air Conditioner]
CAUTION: If the lever position exceeds the operation range shown in the figure, the circuit in the actuator could be damaged. Always perform an actuator operation inspection with the lever movement within the range shown in the figure. 1. Connect battery positive voltage to airfl ...

Mass Air Flow (MAF) Sensor Inspection [Mzr 2.0, Mzr 2.5]
Visual Inspection 1. Remove the battery cover.. 2. Disconnect the negative battery cable.. 3. Disconnect the MAF/IAT sensor connector. 4. Remove the MAF/IAT sensor.. 5. Visually inspect the MAF/IAT sensor for the following: Damage, cracks, soiling Rusted sensor terminal ...