Idle Speed: Testing and Inspection
Idle Speed Inspection1. Warm up the engine to normal operating temperature.
2. Shift the transaxle into Neutral (MTX) or P position (ATX).
3. Turn off all loads.
^ Blower motor
^ Power steering
^ Electrical loads. (i.g, headlight, rear window defroster)
4. Verify that the battery is fully charged.
5. Connect the 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.
^ If not within specifications, adjust the idle speed as follows.
Specification: 550 - 750 (650 ± 100) 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: 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.
5. Connect the SSTs (NGS tester) to the data link connector and select the "PID/DATA MONITOR AND RECORD" function and press TRIGGER.
6. Select "RPM" and press TRIGGER.
7. Wait until the electrical fan stops.
8. Select "START" to begin.
Idle-up Speed Inspection
1. Perform "Engine Tune-up Preparation" above.
2. Verify that the idle speed is normal.
3. Verify that the idle-up speed is within the specification.
^ If not as specified with all loads conditions, check the idle air control valve.
^ If not as specified with some load conditions, check related input switches, harnesses and connectors.