Mazda 3 Service Manual: Crank, Balancer

Engine Assembly

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Crankshaft Position (CKP) Sensor Inspection [Mzr 2.0, Mzr 2.5]

Visual Inspection 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 ...

Other materials:

Seat Weight Sensor Inspection [Two Step Deployment Control System]
CAUTION: If any of the following work is performed, perform the seat weight sensor inspection using the M-MDS. Removal of the passenger-side seat Loosening and retightening of passenger’s seat fixing bolts Or, the vehicle is involved in a collision ...

Intake Air System Removal/Installation [Mzr 2.0, Mzr 2.5]
WARNING: A hot engine and intake air system can cause severe burns. Turn off the engine and wait until they are cool before removing the intake air system. Fuel is very flammable liquid. If fuel spills or leaks from the pressurized fuel system, it will cause serious injury or d ...

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 output signal will malfunction resulting from fluctuation in magnetic flux and cause a deterioration i ...