626 LX L4-2.0L DOHC (1999)
Idle Speed: Testing and Inspection
IDLE SPEED INSPECTION
1. Warm up the engine to normal operating temperature.
2. Shift the transaxle into Neutral (MTX) or P position (ATX).
3. Turn off all loads.
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Blower motor
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Power steering
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Electrical loads (i.e, headlight, rear window defroster)
4. Verify that the battery is fully charged.
5. Connect the Special Service Tools (SSTs) (NGS tester) to data link connector.
6. Select the "DIAGNOSTIC DATA LINK" and press the TRIGGER.
7. Select the "PCM-POWERTRAIN CONTROL MODULE" and press the TRIGGER.
8. Select "PID/DATA MONITOR AND RECORD" and press the TRIGGER.
9. Select the "RPM" and press the TRIGGER.
10. Wait until the electrical fans stop.
11. Verify that the idle speed is within specifications.
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If not within specifications, adjust the idle speed as follows.
Specifications:
MTX: 550 - 850 (700 ± 150) rpm
ATX: 50G - 800 (650 ± 150) rpm
Caution:
-
The Air Adjusting Screw (AAS) must not be adjusted, when the headlight HIGH system is malfunctioning. Any improper adjustment may
affect engine performance.
Note:
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In order to activate the "KOER ON-DEMAND SELF-TEST" after completion of the following procedure, turn off the ignition switch at once,
then operate the "KOER ON-DEMAND SELF-TEST".
IDLE-UP SPEED INSPECTION
Engine Tune-up Preparation
1. Warm up the engine to the normal operating temperature.
2. Shift transaxle into Neutral (MTX) or P position (ATX).
3. Turn off all electrical loads.
-
Headlight
-
Blower
-
Rear window defroster
-
Power steering
4. Verify that the battery is fully charged.