Odyssey EX V6-3.5L (1999)
Idle Speed: Adjustments
Adjust the idle speed using the Honda PGM Tester procedure if possible. If not, use the following procedure:
NOTE:
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Leave the IAC valve connected.
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Before setting the idle speed, check these items:
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The MIL has not been reported on.
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Ignition timing
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Spark plugs
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Air cleaner
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PCV system
1. Disconnect the EVAP purge control solenoid valve 2P connector.
2. Connect a tachometer.
3. Start the engine. Hold the engine at 3,000 rpm with no load (transmission in Park or neutral position) until the radiator fan comes on, then let it
idle.
4. Check the idle speed with no-load conditions: headlights, blower fan, rear defogger, radiator fan, and air conditioner are not operating.
Idle speed should be: 730 ± 50 rpm (in Park or neutral)
5. Adjust the idle speed, if necessary, by turning the idle adjusting screw (A) 1/4-turn clockwise or counterclockwise.
NOTE: Do not turn the idle adjusting screw more than 1/4-turn without checking the idle speed.
6. After turning the idle adjusting screw 1/4-turn, check the idle speed again. If it is out of spec, turn the idle adjusting screw 1/4-turn again.
7. Allow the engine to idle for one minute with the heater fan switch at HI and air conditioner on, then check the idle speed.
Idle speed should be: 730 ± 50 rpm (in Park or neutral)
NOTE:
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Do not turn the idle adjusting screw when the air conditioner is on.
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If the idle speed is not within specification, see the Symptom Troubleshooting Index.
See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Symptom Related Diagnostic Procedures
8. Reconnect the EVAP purge control solenoid valve 2P connector.
