Idle Speed: Testing and Inspection

Before inspecting idle speed, make sure of the following:
- Lead wires and hoses of Electronic Fuel Injection and engine emission control systems are connected securely.
- After warming up the engine, the accelerator cable has some play. That is, it is not tight.
- Ignition timing is within specification.
- All of electrical loads except ignition are switched off.
- Air cleaner has been properly installed and is in good condition.
After above items are confirmed, check idle speed as follows:

NOTE:
Before staring engine, place transmission gear shift lever in Neutral (shift selector lever to Park for A/T model), and set parking brake and block drive wheels.

1. Warm up engine to normal operating temperature.
2. Set tachometer.
3. Check idle speed with A/C off.
- If idle speed is not within specified range, check idle speed control system and any other system and parts which might affect idle speed.
- Refer to diagnostic flow chart for trouble code 46 for inspection,

Idle speed: 850 ± 50 rpm

NOTE:Idle speed is not adjustable manually. If it is out of specification, there is a faulty condition somewhere. Check each of the related systems and parts.

4. Check idle speed with A/C on (if equipped).
- If idle speed is not within specifications, check A/C control signal.
- Refer to diagnostic flow chart B-10 (A/C control signal check) for inspection.

Idle speed: 875 ± 50 rpm