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
- Disconnect the Evaporative Emission (EVAP) canister purge valve 2P connector.
- Connect a tachometer (A) to the test tachometer connector (B).
- 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.
- Turn the ignition switch OFF.
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- Start the engine.Check the idle speed with no-load conditions: headlights, blower fan, rear defogger, radiator fan, and air conditioner are not operating.
Idle speed should be:
M/T |
650+50 rpm (min-1) |
A/T |
650+50 rpm (min-1)
(in Park or neutral)
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NOTE:ECM/PCM might control to raise the idle speed 750 rpm (min-1) in case of the battery performance,etc. In this case, idle speed is OK.Go to step 6.
- Idle the engine for 1 minute with heater fan switch on HI and air conditioner on, then check the idle speed.
Idle speed should be:
M/T |
750+50 rpm (min-1) |
A/T |
750+50 rpm (min-1)
(in Park or neutral)
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NOTE: If the idle speed in not within specification, see Symptom Chart.
- Reconnect the EVAP canister purge valve 2P connector.
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