Mazda 3 Service Manual: Camshaft Position (CMP) Sensor Inspection [Mzr 2.0, Mzr 2.5]
Visual Inspection
CAUTION:
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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 in engine control.
1. Remove the battery cover..
2. Disconnect the negative battery cable..
3. Remove the plug hole plate..
4. Disconnect the CMP sensor connector.
5. Remove the CMP sensor..
6. Verify that there are no metal shavings on the CMP sensor.
-
Remove any metal shavings that are adhering.
Voltage 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 in engine control.
-
If the wiring harnesses or waterproof connectors are damaged, water penetrating the connector will cause a sensor malfunction. To prevent this, be careful not to damage wiring harnesses or waterproof connectors.
1. Idle the engine.
2. Measure the CMP signal and verify that rectangular waves are produced..
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If not as specified, replace the CMP sensor..
Air Fuel Ratio (A/F) Sensor Removal/Installation [Mzr 2.0, Mzr 2.5]
WARNING:
A hot engine and exhaust system can cause severe burns. Turn off the engine
and wait until they are cool before removing the exhaust system.
1. Remove the battery cover..
2 ...
Camshaft Position (CMP) Sensor Removal/Installation [Mzr 2.0, Mzr 2.5]
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 malfu ...
Other materials:
Front Wheel Hub Bolt Replacement
1. Remove the brake calliper component and disc plate..
2. Remove the wheel hub bolt using the SST as shown in the figure.
NOTE:
When removing the wheel hub bolts, perform the work between range A shown
in the figure to assure a space for the bolt removal.
3. Place a new whe ...
Front Door Removal/Installation
WARNING:
Removing the front door without supporting it could cause the front door
to fall and cause serious injury. Always perform the procedure with at least
another person to prevent the front door from falling.
1. Disconnect the negative battery cable..
2. Remove in the orde ...
Compression Inspection [Mzr 2.3 Disi Turbo]
WARNING:
Hot engines and oil can cause severe burns. Be careful not to burn yourself
during removal/installation of each component.
Fuel vapor is hazardous. It can very easily ignite, causing serious injury
and damage. Always keep sparks and flames away from fuel.
Fuel ...