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 2,5003,000 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 2:205072 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:

Hood Latch Switch Inspection
1. Disconnect the negative battery cable.. 2. Remove the hood latch.. 3. Verify that the continuity is as indicated in the table. If not as indicated in the table, replace the hood latch. NOTE: Press the latch lever in using a flathead screwdriver to inspect the c ...

Glass Panel Removal/Installation
1. Fully close the glass panel. 2. Fully open the sunshade. 3. Remove the screws, and then remove the glass panel. 4. Peel the weatherstrip off the glass panel. 5. Install in the reverse order of removal. 6. Adjust the glass panel.. ...

Forced Ignition On [With Advanced Keyless Entry And Push Button Start System]
NOTE: In order to perform a forced ignition ON, the M-MDS (IDS) is necessary. If the servicing is being done outside of an Authorized Mazda dealership, contact an Authorized Mazda dealership for instructions. The forced ignition ON procedure forces a power supply to each part w ...

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