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Home >> Mazda >> 1996 >> MPV 2WD V6-3.0L SOHC >> Repair and Diagnosis >> Powertrain Management >> Tune-up and Engine Performance Checks >> Idle Speed >> Testing and Inspection
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Idle Speed: Testing and Inspection

ADJUSTMENT PROCEDURES
Preparation:
1. Warm up the engine to normal operating temperature.
2. Shift the transmission into P position.
3. Turn off all loads.
- Headlight
- Blower motor
- Rear window defroster
- Power steering




4. Connect the Special Service Tools (SST)s New Generation Star (NGS) tester to the data link connector 2 located under the driver side dashboard and select the "PID/DATA MONITOR AND RECORD" function.
5. Select "RPM" on the NGS display.

Idle Speed:
1. Perform "Preparation".
2. Connect the SST-(System Selector) to the data link connector.
3. Set switch A to position 1.
4. Set the test switch to SELF TEST
5. Verify that the idle speed is within the specification.

Specification: 760 - 800 (780 ± 20) RPM

CAUTION:
- The throttle adjusting screw is set at the factory and must not be adjusted.
- Any adjustment will negatively effect the engine performance.




6. If not within the specification, adjust the idle speed by turning the air adjusting screw.
7. Disconnect the SST-(System Selector).

Idle-up Speed:
1. Perform "Preparation".
2. Verify that the idle speed is within the specification.

Specification: 760 - 800 (780 ± 20) RPM

3. If not as specified, adjust the idle speed.
4. Check the idle speed with the following load conditions.




Specification

NOTE: Excludes temporary idle speed drop just after the electrical loads are turned on.

5. If not as specified with all load conditions, inspect the idle air control valve.
- If not as specified with some load condition, check related input switches, harnesses and connectors.

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