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:

Electric Variable Valve Timing Motor/Driver Removal/Installation [Skyactiv G 2.0]
WARNING: A hot engine can cause severe burns. Turn off the engine and wait until it is cool before servicing. CAUTION: Applying excessive force (force of 100 N {10.2 kgf, 22.5 lbf} or more) to the electric variable valve timing motor/driver may cause a malfunction. When ...

Oil Seal (Control Valve Body) Replacement [Fw6 A EL]
1. Remove the battery cover.. 2. Disconnect the negative battery cable.. 3. Remove the air cleaner component.. 4. Disconnect the control valve body connector. 5. Remove the hose clamp. 6. Cut the oil seal using a utility knife as shown in the following illustration. CAUTION: ...

Starter Interlock Switch Removal/Installation [C66 M R]
1. Remove the battery cover.. 2. Disconnect the negative battery cable.. 3. Disconnect the starter interlock switch connector. 4. Remove the starter interlock switch from the pedal bracket. 5. Insert a new starter interlock switch into the pedal bracket hole in the direction indicated ...