ENGINE TUNE-UP [13B-MSP]

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Engine Tune-up Preparation

1.  Verify the following:

•  AT: Selector lever is in P or N position.
•  MT: Shift lever is in neutral position.

2.  Turn off all electrical loads.

3.  Warm up the engine.

(1)  Increase the engine speed to 2,500—3,000 rpm until cooling fans start running.
(2)  When the cooling fans start running, release the accelerator pedal and wait until the cooling fans stop running.

4.  Connect the M-MDS to the DLC-2.

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5.  Verify that the idling speed (M-MDS: RPM PID) is within the specification using the M-MDS function.

Standard (no load)
AT: 760—860 rpm
MT: 770—870 rpm


Ignition Timing Inspection

Note
•  The ignition timing cannot be adjusted.
•  The M-MDS is required to verify the ignition timing.

1.  Complete the engine tune-up preparation. (See Engine Tune-up Preparation.)

2.  Connect the timing light to the front rotor housing on the leading side.

3.  Turn the test mode on using the test simulation function.

4.  Verify that the eccentric shaft position plate alignment mark (yellow) and the front cover mark is aligned.

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Note
•  When using the M-MDS, verify that the ignition timing (M-MDS: SPARK-T or SPARK-L PID) is as follows:
Ignition timing
Trailing side: BTDC 10°
Leading side: BTDC –5°
•  If there is malfunction, refer to “ENGINE SYMPTOM TROUBLESHOOTING”. (See SYMPTOM DIAGNOSTIC INDEX [13B-MSP].)

5.  Turn the test mode off using the test simulation function.


Idle Speed Inspection

Note
•  The idling speed cannot be adjusted.
•  The M-MDS is required to verify the idling speed.

1.  Complete the engine tune-up preparation. (See Engine Tune-up Preparation.)

2.  Turn the test mode on using the “test” simulation function.

3.  Verify that the engine speed using the RPM DATA MONITOR function is as follows.

•  If there is malfunction, refer to “ENGINE SYMPTOM TROUBLESHOOTING”. (See SYMPTOM DIAGNOSTIC INDEX [13B-MSP].)

Standard

Load status

Idling speed (rpm)

N, D, R position (AT), Neutral position (MT)

AT

MT

N position

D position

R position
No load
760—860
760—860
760—860
770—870
Electrical loads on*1
780—880
760—860
740—840
760—860
A/C on
(standard)
780—880
760—860
750—850
760—860
A/C on (standard)+
electrical loads on*1
780—880
760—860
750—850
790—890
A/C on
(heavy load)
800—900
780—880
780—880
790—890

*1  :The headlight, rear window defroster, blower fan (2-step or more) are on.


Idle Mixture Inspection

1.  Verify that idle speed and ignition timing are within the specification. (See Idle Speed Inspection.) (See Ignition Timing Inspection.)

2.  Insert an exhaust gas analyzer into the tailpipe.

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

•  If there is malfunction, refer to “ENGINE SYMPTOM TROUBLESHOOTING”. (See SYMPTOM DIAGNOSTIC INDEX [13B-MSP].)