Idle Speed: Adjustments

ENGINE TUNE-UP
Engine Tune-up Preparation
1. Warm up the engine to normal operating temperature.
2. Shift transmission into Neutral (MT) or P position (AT).
3. Turn off all electrical loads.
- Headlight
- Blower
- Rear window defroster
4. Verify that the battery is fully charged.
5. Wait until the electrical fan stops.




6. Connect the NGS tester to the DLC-2 and select the "PID/DATA MONITOR AND RECORD" function and press TRIGGER.
7. Select "RPM" and press TRIGGER.





8. If using the SST (System selector) to turn on the test mode, perform as follows:
1. Connect the SST to the DLC.
2. Set switch A to position 1.
3. Set the test switch to SELF TEST.

Caution:
- Connecting the wrong DLC terminal may possibly cause a malfunction. Carefully connect the specified terminal only.





9. If using a jumper wire to turn on the test mode, perform the following: (1) Short the DLC terminal TEN to body GND using a jumper wire.
10. Select "START" to begin.

Idle Speed Adjustment
1. Perform "Engine Tune-up Preparation".





2. Verify that the idle speed is within the specification.
- If not within the specification, adjust the idle speed by turning the AAS.
Specification 750 - 850 (800 ± 50) rpm

Caution:
- The AAS is set at the factory and must not be adjusted. Any adjustment will negatively affect the engine performance.

3. Disconnect SST (System selector) or a jumper wire.
4. Press "CLEAR" to clear previously selected items.
5. Disconnect the NGS tester