Idle Speed: Testing and 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

- On Canadian models, pull the parking brake lever up, start the engine, then check that the headlights are off.

1. Disconnect the evaporative emission (EVAP) canister purge valve 2P connector.
2. Connect a tachometer or the HDS.
3. Start the engine. Hold the engine speed at 3,000 rpm without load (in neutral) unit the radiator fan comes on, then let it idle.
4. Check the idle speed under without load conditions: headlights, blower fan, radiator fan, and air conditioner are not operating.

Idle speed should be:

USA model:
M/T 700 ± 50 rpm
A/T, CVT 700 ± 50 rpm (in Park or neutral)

Canada model:
M/T 720 ± 50 rpm
A/T 720 ± 50 rpm (in Park or neutral)

5. Idle the engine 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:
M/T 720 ± 50 rpm
A/T, CVT 720 ± 50 rpm (in Park or neutral)

NOTE: If the idle speed is not within specification, do the Symptom Troubleshooting.

6. Reconnect the EVAP canister purge valve 2P connector.