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
- Pull the parking brake lever up.
- Disconnect the evaporative emission (EVAP) canister purge valve connector.
- Connect the HDS to the data link connector (DLC) (A) located under the driver's side of the dashboard.
- Turn the ignition switch ON (II).
- Make sure the HDS communicates with the ECM/PCM. If it doesn't, go to the DLC circuit troubleshooting (see DLC CIRCUIT TROUBLESHOOTING ).
- 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 WITHOUT LOAD CONDITIONS ('03-04 SULEV AND M/T MODELS)
M/T 700+/-50 rpm A/T 700+/-50 rpm (in Park or neutral) A/T (except SULEV) model
800+/-50 rpm (in Park or neutral)
IDLE SPEED WITHOUT LOAD CONDITIONS ('05-07 MODELS)M/T 720+/-50 rpm A/T 800+/-50 rpm (in Park or neutral) - Let the engine idle for 1 minute with high electric load (A/C switch on, temperature set to max cool, blower fan on High, and headlights on high beam).IDLE SPEED WITH HIGH ELECTRIC LOAD ('03-2004 SULEV AND M/T MODELS)
M/T 720+/-50 rpm A/T 720+/-50 rpm (in Park or neutral) A/T (except SULEV) model
800+/-50 rpm (in Park or neutral)
'05-07 models:
IDLE SPEED WITH HIGH ELECTRIC LOAD (05-07 MODELS)M/T 720+/-50 rpm A/T 800+/-50 rpm (in Park or neutral) NOTE: If the idle speed is not within specification, do the ECM/PCM idle learn procedure (see ECM/PCM IDLE LEARN PROCEDURE ). If the idle is still out of specification, go to the symptom troubleshooting. - Reconnect the EVAP canister purge valve connector.