ENGINE TUNE-UP[MZ-CD 1.6 (Y6)]

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Idle Speed Inspection

Note

•  Idle speed is not adjustable.

•  Idle speed verification requires M-MDS.

1.  Warm up the engine to normal operating temperature.

(1)  Increase the engine speed to 2,500—3,000 rpm until the cooling fan starts running.

(2)  When the cooling fan starts running, release the accelerator pedal and wait until the cooling fan stops running.

2.  Verify the shift lever is in neutral position.

3.  Turn off all electrical loads.

4.  Connect the M-MDS to the DLC-2.

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5.  Verify that the idle speed is within the specification using the ENGRPM DATA MONITOR function.

Idle Mixture Inspection

1.  Warm up the engine to normal operating temperature.

(1)  Increase the engine speed to 2,500—3,000 rpm until the cooling fan starts running.

(2)  When the cooling fan starts running, release the accelerator pedal and wait until the cooling fan stops running.

2.  Verify that the idle speed are within the specification. (See Idle Speed Inspection.)

3.  Insert an exhaust gas analyzer into the tailpipe.

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