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:

Slide Motor Inspection
1. Remove the battery cover.. 2. Disconnect the negative battery cable and wait 1 min or more.. 3. Disconnect the slide motor connector. 4. Apply battery positive voltage to the slide motor terminals and inspect the slide motor operation If not as specified, replace the front sea ...

Ion Sensor Inspection [Skyactiv G 2.0]
DTC Inspection NOTE: Because the ion sensor is integrated in the ignition coil, replacing the ion sensor includes replacement of the ignition coil/ion sensor. 1. Connect the M-MDS to the DLC-2. 2. Perform the DTC inspection using the M-MDS.. If any DTC related to the ...

Oil Control Valve (OCV) Inspection [Mzr 2.0, Mzr 2.5]
Coil Resistance Inspection 1. Remove the battery cover.. 2. Disconnect the negative battery cable.. 3. Remove the plug hole plate.. 4. Disconnect the OCV connector. 5. Measure the resistance between terminals A and B using an ohmmeter. OCV coil resistance 6.9—7.9 ohms [20°C {6 ...