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Mazda CX-5 Service & Repair Manual: Compression Inspection

Mazda CX-5 Service & Repair Manual / Engine / General / Compression Inspection

WARNING:

1. Verify that the battery is fully charged..

2. Warm up the engine to the normal operating temperature.

3. Perform “Fuel Line Safety Procedures”..

4. Remove the following parts.

a. Plug hole plate..

b. Ignition coil/ion sensors..

c. Spark plugs..

d. Fuel pump relay

e. Fuel injector relay

5. Measure the compression pressure using the following procedure.

a. Press a compression gauge into the spark plug hole.


b. Fully depress the accelerator pedal.

c. Crank the engine and measure the compression pressure.

NOTE:

d. Perform Steps (1) to (3) for all cylinders.

e. If it is less than the minimum specification, or there is a cylinder with a maximum value that exceeds the other cylinders, add a small quantity of engine oil through the spark plug hole and perform Steps (1) to (3).

f. If the measured value is high, it is possible that there is an error in the electric variable valve timing system.

6. Remove the compression gauge.

7. Install the following parts.

a. Fuel injector relay

b. Fuel pump relay

c. Spark plugs..

d. Ignition coil/ion sensors..

e. Plug hole plate..

General
...

Compression Inspection
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 ignit ...

Other materials:

PCM
Purpose/Function High-level driveability and lower fuel consumption have been realized by controlling the appropriate engine conditions (fuel injection/ignition timing) according to operation conditions. Controls each output part based on the signal from each input part. ...

PID/Data Monitor Inspection [Front Body Control Module (Fbcm)]
1. Connect the M-MDS to the DLC-2. 2. After the vehicle is identified, select the following items from the initialization screen of the M-MDS. a. Select “DataLogger”. b. Select “Modules”. c. Select “F_BCM”. 3. Select the applicable PID from the PID table. 4. Verify the PID ...

Rear Door Checker Removal/Installation
1. Fully close the rear door glass. 2. Disconnect the negative battery cable.. 3. Remove the rear door trim.. 4. Remove the rear door speaker.. 5. Remove bolt. 6. Remove nuts. 7. Pull out the rear door checker from the rear speaker installation hole. 8. Install in the reverse ...

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