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:

Underbody Maintenance
Road chemicals and salt used for ice and snow removal and solvents used for dust control may collect on the underbody. If not removed, they will speed up rusting and deterioration of such underbody parts as fuel lines, frame, floor pan, and exhaust system, even though these parts may be coate ...

Interior Light Bulb Removal/Installation
1. Disconnect the negative battery cable.. 2. Insert a tape-wrapped fastener remover into the service hole and pry with the screwdriver in the direction shown by the arrow to remove the lens. 3. Remove the interior light bulb. 4. Install in the reverse order of removal. ...

Engine Oil Level Inspection [Mzr 2.0, Mzr 2.5]
1. Position the vehicle on level ground. 2. Warm up the engine. 3. Stop the engine and allow at least 5 min before continuing. 4. Remove the dipstick, wipe it cleanly, and reinstall it fully. 5. Remove the dipstick and verify that the oil level is between the F and L marks on the dipstick. ...