Idle Speed Inspection

Idle Speed Inspection

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
    
  • Spark plugs
    
  • Air cleaner
    
  • PCV system
    

1.	Disconnect the evaporative emission (EVAP) canister purge valve connector.

2.	Connect the Honda PGM Tester or the HDS to the data link connector (DLC) (A) located under the driver's side of the dashboard. A*: The illustration shows LHD model.

3.	Start the engine. Hold the engine at 3,000 rpm (min-1) with no load (in Park or neutral) until the radiator fan comes on, then let it idle.

4.

Check the idle speed with no-load conditions: headlights, blower fan, radiator fan, and air conditioner off. Idle speed should be:  K24A3 engine: M/T  600±50 rpm (min-1)  A/T  650±50 rpm (min-1) (in Park or neutral)  K20A6 engine: M/T  650±50 rpm (min-1)  A/T  650±50 rpm (min-1) (in Park or neutral)

5.

Let the engine idle for 1 minute with the heater fan switch on HI and air conditioner on, then check the idle speed. Idle speed should be: M/T  720±50 rpm (min-1)  A/T  800±50 rpm (min-1) (in Park or neutral)  NOTE: If the idle speed is not within specification, do the ECM/PCM idle learn procedure. If the idle is still out of specification, go to the Symptom Troubleshooting Index.

6.	Reconnect the EVAP canister purge valve connector.