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Mazda CX-5 Service & Repair Manual: Camshaft Position (CMP) Sensor Inspection

Mazda CX-5 Service & Repair Manual / Engine / Control / Camshaft Position (CMP) Sensor Inspection

Intake CMP Sensor

Visual inspection

CAUTION:

1. Remove the intake CMP sensor..

2. Verify that there are no metal shavings on the intake CMP sensor.

Voltage inspection

CAUTION:

1. Idle the engine.

2. Measure the intake CMP sensor output voltage using the oscilloscope.



Terminal

Voltage (V)

Condition

A

Above 4.8

High output*

Below 0.8

Low output*

B

Below 1.0

Under any condition

C

B+

Under any condition


* Output voltage varies with camshaft rotation.

Exhaust CMP Sensor

Visual inspection

CAUTION:

1. Remove the exhaust CMP sensor..

2. Verify that there are no metal shavings on the exhaust CMP sensor.

Voltage inspection

CAUTION:

1. Idle the engine.

2. Measure the exhaust CMP sensor output voltage using the oscilloscope.



Terminal

Voltage (V)

Condition

A

Above 4.8

High output*

Below 0.8

Low output*

B

Below 1.0

Under any condition

C

B+

Under any condition


* Output voltage varies with camshaft rotation.

Air Fuel Ratio (A/F) Sensor
Purpose/Function Detects the oxygen concentration (all-range air/fuel ratio) in the exhaust gas as basic information for mainly determining the fuel injection amount. Detects the oxy ...

Camshaft Position (CMP) Sensor Removal/Installation
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:

Rear Accessory Socket Removal/Installation
1. Disconnect the negative battery cable.. 2. Insert a tape-wrapped flathead screwdriver into the service hole in the position shown in the figure. 3. Move the flathead screwdriver in the direction of the arrow (1) shown in the figure, pull out the service hole cover, and detach the serv ...

Ventilator Grille Removal/Installation
Side Ventilator Grille Driver-side 1. Disconnect the negative battery cable.. 2. Remove the switch panel.. 3. Insert your hand from the area where the switch panel was installed, remove the side ventilator grille in the direction of the arrow shown in the figure while detaching hooks A. ...

Exhaust System
Purpose, Outline A 4-2-1 exhaust system has been adopted which reduces residual gas in the cylinders using the scavenging effect and contributes to a high compression ratio. The loop structure of the exhaust pipes for the 4-2-1 system takes up less space. Structural Vie ...

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