Mazda 3 manuals

Mazda 3 Service Manual: Compression Inspection [Skyactiv G 2.0]

Mazda 3 Service Manual / Engine / General / Compression Inspection [Skyactiv G 2.0]

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 the measured value is less than the minimum value, or there is a cylinder whose compression value varies from that of other cylinders by 140 kPa {1.43 kgf/cm2, 20.3 psi}

or more, add a small amount of engine oil through the spark plug hole. Then measure the compression pressure and perform the respective operations for the following cases.

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..

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 ignit ...

Electric Variable Valve Timing Actuator Inspection [Skyactiv G 2.0]
WARNING: A hot engine can cause severe burns. Turn off the engine and wait until it is cool before servicing. CAUTION: Do not disassemble the electric variable valve timing ac ...

Other materials:

Back Up Light Switch Inspection
1. Disconnect the negative battery cable.. 2. Remove the battery component. (ex: battery, battery tray and PCM component) (G35-MR,G66M-R). 3. Remove the aerodynamic under cover No.2. (G35-MR,G66M-R,C66M-R). 4. Disconnect the back-up light switch connector.. 5. Verify that the continuity be ...

Battery Recharging [Skyactiv G 2.0]
Using GR8-1291: (See GR8-1291 INSTANT TRAINING MODULE (VIDEO) .) WARNING: Keep all flames away from the battery, otherwise evaporated gas from the battery fluid may catch fire and cause serious injury. 1. Remove the battery filler caps and check the water level. If necessary, add ...

Driving Tips
WARNING Do not let the vehicle move in a direction opposite to the direction selected by the selector lever: Do not let the vehicle move backward with the selector lever in a forward position, or do not let the vehicle move forward with the selector lever in the revers ...

© 2016-2023 Copyright www.mazda3tech.com