Idle Speed Inspection
NOTE:
- Before checking the idle speed, check these items
- The malfunction indicator lamp (MIL) has not been reported on, and there are no DTCs
- Ignition timing
- Spark plugs
- Air cleaner
- PCV system
- Apply the parking brake, and make sure the headlights are off
- 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
- 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 (A/T in P or N, M/T in 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
ENGINE SPEED SPECIFICATIONM/T 750 ± 50 rpm A/T 800 ± 50 rpm (in P or N) - 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 should be
ENGINE SPEED SPECIFICATIONM/T 750 ± 50 rpm A/T 800 ± 50 rpm (in P or N) 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 speed is still not within specification, go to symptom troubleshooting - Reconnect the EVAP canister purge valve connector