Idle Speed Adjustment
NOTE:
- Leave the idle air control (IAC) valve connected.
- Before checking the idle speed, check these items:
- The malfunction indicator lamp (MIL) has not been reported on.
- Ignition timing
- Sparkplugs
- Air cleaner
- PCV system
- Pull the parking brake lever up. Start the engine, and make sure the headlights are off.
- Disconnect the evaporative emission (EVAP) canister purge valve 2P connector.
- Connect the HDS to the data link connector (DLC) (A) located under the driver's side (passenger's)* of the dashboard.
*: 2000 model
2000 model
Courtesy of AMERICAN HONDA MOTOR CO., INC.
2001-2006 models
- Start the engine. Hold the engine speed at 3,000 RPM without load (in Park or neutral) until the radiator fan comes on, then let it idle.
- Check the idle speed without load conditions: headlights, blower fan, radiator fan, and air conditioner off.
Idle speed should be:
IDLE SPEED SPECIFICATIONM/T 900+/-50 RPM CVT 900+/-50 RPM (in Park or neutral) - If needed, adjust the idle speed by turning the idle adjusting screw (A) 1/2-turn clockwise or counterclockwise.NOTE:
- Do not turn the idle adjusting screw (A) more than 1/2-turn without checking the idle speed.
- Do not turn the idle adjusting screw when the air conditioner is on.
- After turning the idle adjusting screw (A) 1/2-turn, check the idle speed again. If it is out of spec, turn the idle adjusting screw (A) 1/2-turn again.
- Let the engine idle for 1 minute with high electric load (A/C switch ON, temperature set to max. Cool, blower fan on high, rear window defogger on, and headlights on high beam).
Idle speed should be:
IDLE SPEED SPECIFICATIONM/T 900+/-50 RPM CVT 900+/-50 RPM (in Park or neutral) NOTE: If the idle speed is not within specification, go to the Symptom Troubleshooting. - Reconnect the EVAP canister purge valve 2P connector.
- Do the ECM idle learn procedure (see ECM IDLE LEARN PROCEDURE ).