Mazda 3 manuals

Mazda 3 Service Manual: Engine Tune Up [Mzr 2.0, Mzr 2.5]

Mazda 3 Service Manual / Engine / General / Engine Tune Up [Mzr 2.0, Mzr 2.5]

NOTE:

Engine Tune-up Preparation

1. Verify the following:

2. Warm up the engine to normal operating temperature.

a. Increase the engine speed to 2,500—3,000 rpm

until the cooling fan starts running.

b. When the cooling fan starts running, release the accelerator pedal and wait until the cooling fan stops running.

3. Turn off all electrical loads.

4. Connect the M-MDS to the DLC-2.


Idle Speed Inspection

NOTE:

1. Complete the engine tune-up preparation..

2. Verify that the idle speed (M-MDS: RPM) is within the specification..

Ignition Timing Inspection

NOTE:

1. Complete the engine tune-up preparation..

2. Verify the ignition timing (M-MDS: SPARKADV) using the PID/data monitor function of the M-MDS..

3. Verify that ignition timing advances when the engine speed increases gradually.

Idle Mixture Inspection

1. Verify that the idle speed and ignition timing are within the specification..

2. Insert an exhaust gas analyzer into the tailpipe.

3. Verify that the CO and HC concentrations are within regulation.

Idle-up Speed Control Inspection

NOTE:

1. Complete the engine tune-up preparation..

2. Verify that the engine speed (M-MDS: RPM) is within the specification when each load is applied. (The speed decrease just after the load is applied is not considered.).

Engine SST [Skyactiv G 2.0]
1: Mazda SST number 2: Global SST number Example 1:49 UN20 5072 2:205–072 Holder 1: – 2: 134-01049A Evaporative emission system teste ...

Engine Tune Up [Mzr 2.3 Disi Turbo]
NOTE: If the accelerator pedal is depressed continuously for a specified time, the engine speed may decrease to the idle speed. This is due to the fuel cut control operation, which preve ...

Other materials:

Rear Coil Spring Removal/Installation
1. Disconnect the auto leveling sensor lower side. (Vehicles with AFS). 2. Remove in the order indicated in the table. 3. Install in the reverse order of removal. 4. Inspect the wheel alignment and adjust it if necessary.. 1 Rear stabilizer control link upper nut ...

Outside the United States/ Canada
Government regulations in the United States/Canada require that automobiles meet specific emission regulations and safety standards. Therefore, vehicles built for use in the United States/Canada may differ from those sold in other countries. The differences may make it difficult or even imp ...

Brake Fluid Level Sensor Inspection
1. Disconnect the brake fluid level sensor connector from the master cylinder. 2. Inspect for continuity according to fluid level between the brake fluid level sensor terminals. If not as indicated in the table, replace the reserve tank. ...

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