CAMSHAFT POSITION (CMP) SENSOR INSPECTION [MZR 2.3 DISI Turbo]
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Visual Inspection
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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. (See BATTERY REMOVAL/INSTALLATION [MZR 2.3 DISI Turbo].)
2. Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.3 DISI Turbo].)
3. Remove the charge air cooler cover. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZR 2.3 DISI Turbo].)
4. Disconnect the CMP sensor connector.
5. Remove the CMP sensor. (See CAMSHAFT POSITION (CMP) SENSOR REMOVAL/INSTALLATION [MZR 2.3 DISI Turbo].)
6. Verify that there are no metal shavings on the sensor.
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• If there is a malfunction, remove any metal shavings that are adhering.
Voltage Inspection
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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.
• 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 sensor output wave pattern using an oscilloscope. (See PCM INSPECTION [MZR 2.3 DISI Turbo].)
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