Chevrolet Cobalt Service & Repair Manual: Idle Speed & Mixture Adjustments

Idle speed is controlled by the ECM/PCM. No adjustment is required.

Curb Idle Speed

Curb idle speed is controlled by the ECM/PCM. No adjustment is required.

Fast Idle Speed

Fast idle speed is controlled by the ECM/PCM. No adjustment is required.

Mixture

Fuel mixture is controlled by the ECM/PCM and is not adjustable.
    Compression Pressures
    1. Ensure engine is at room temperature and battery is fully charged. 2. Disconnect wiring from ignition module and remove spark pl ...

    Fuel Injection
    ...

    See also:

    Chevrolet Cobalt Service & Repair Manual. Exhaust System Complete, Replace
    Removal Warning: Approved safety glasses and gloves should be worn when performing this procedure to reduce the chance of personal injury. Caution: Do not over flex or damage the flex joint when moving the flex joint from the normal mounting position. ...

    Chevrolet Cobalt Owners Manual

    Chevrolet Cobalt Service Manual


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