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:

Quick Release Connector (Emission System) Removal/Installation [Mzr 2.0, Mzr 2.5]
Quick Release Connector Type CAUTION: Verify the type and location, and install/remove properly. Except for Mexico Mexico Type A Removal CAUTION: Be careful not to damage the evaporative pipe when unlocking the retainer. NOTE: When removing the quick r ...

Replacing Exterior Light Bulbs
Headlights (With xenon fusion headlights) Low/High beam bulbs You cannot replace the low/high beam bulbs by yourself. The bulbs must be replaced at an Authorized Mazda Dealer. Headlights (With halogen headlights) Low-beam bulbs If you are changing the right bulb, start the engine, turn ...

Before Service Precaution [Mzr 2.0, Mzr 2.5]
WARNING: Fuel vapor is hazardous. It can very easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage from the pressurized fuel system are dangerous. Fuel can ignite and cause serious injury or death and damag ...