Mazda 3 Service Manual: Valvetrain, Cylinder Head

Crankshaft Position (CKP) Sensor Removal/Installation [Mzr 2.0, Mzr 2.5]

Removal CAUTION: When foreign material such as an iron chip is on the CKP sensor, it can cause abnormal output from the sensor because of flux turbulence and adversely affect the engine ...

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:

M Position Switch Inspection [Fw6 A EL]
Continuity Inspection NOTE: The M position switch is built into the selector lever component. 1. Remove the battery cover.. 2. Disconnect the negative battery cable.. 3. Remove the console.. 4. Disconnect the selector lever component connector. 5. Verify that the continuit ...

Heating
Set the mode selector dial to the position. Set the air intake selector to the outside air position. Set the temperature control dial to the hot position. Set the fan control dial to the desired speed. If dehumidified heating is desired, turn on the air conditioner. NOTE ...

Radiator Drain Plug Replacement [Mzr 2.0, Mzr 2.5]
WARNING: Never remove the cooling system cap or loosen the radiator drain plug while the engine is running, or when the engine and radiator are hot. Scalding engine coolant and steam may shoot out and cause serious injury. It may also damage the engine and cooling system. Tu ...