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:

Oil Seal (Differential) Replacement [C66 M R]
1. Remove the aerodynamic under cover No.2 and the splash shield as a single unit.. 2. Drain the manual transaxle oil.. 3. Disconnect the drive shaft (LH) from the MTX.. 4. Disconnect the drive shaft (RH) from the joint shaft.. 5. Remove the joint shaft.. 6. Remove the oil seal (LH). ...

On Board Diagnostic System Simulation Inspection [FS5 A EL]
1. Connect the M-MDS(IDS) to the DLC-2. 2. After the vehicle is identified, select the following items from the initialization screen of the IDS. a. Select "DataLogger". b. Select "Modules". c. Select "TCM". 3. Select the simulation items from the PID ta ...

Exhaust System Removal/Installation [Mzr 2.0, Mzr 2.5]
WARNING: A hot engine and exhaust system can cause severe burns. Turn off the engine and wait until they are cool before removing the exhaust system. 1. Remove the battery cover.. 2. Disconnect the negative battery cable.. 3. Remove the plug hole plate.. 4. Remove in the order ...

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