Mazda 3 manuals

Mazda 3 Service Manual: Engine Tune Up [Mzr 2.3 Disi Turbo]

Mazda 3 Service Manual / Engine / General / Engine Tune Up [Mzr 2.3 Disi Turbo]

NOTE:

Engine Tune-up Preparation

1. Verify that the shift lever is in neutral position.

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


3. Verify that no DTCs are available.

4. Warm up the engine (ECT is approx. 80°C {176 °F} or more

).

5. Turn off all electrical loads.

6. Wait until the cooling fan stops.

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 Speed Inspection

NOTE:

1. Complete the engine tune-up preparation..

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

*1 When the following electrical loads are on: Headlights, rear defroster, cooling fan, and the blower motor (2-step or more.)

Idle Mixture Inspection

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

2. Insert an exhaust gas analyzer to the tailpipe.

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

Engine Tune Up [Mzr 2.0, Mzr 2.5]
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 ...

Engine Tune Up [Skyactiv G 2.0]
Engine Tune-up Preparation 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 co ...

Other materials:

Fuel-Filler Lid and Cap
WARNING When removing the fuel-fi ller cap, loosen the cap slightly and wait for any hissing to stop, then remove it: Fuel spray is dangerous. Fuel can burn skin and eyes and cause illness if ingested. Fuel spray is released when there is pressure in the fuel tank and ...

Transmitter
NOTE (With theft-deterrent system) The hazard warning lights flash when the theft-deterrent system is armed or turned off. Refer to Theft-Deterrent System on . (With the advanced keyless function) A beep sound can be heard for confirmation when the doors and the l ...

Windshield Washer Hose Removal/Installation
1. Remove the following parts: a. Windshield wiper arm and blade. b. Front fender molding. c. Cowl grille. d. Front mudguard (RH). 2. Disconnect joint pipes, then remove windshield washer hose B, C and D. 3. Remove the windshield washer hose B. 4. Disconnect windshield washer hose C fr ...

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