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 Owners Manual. Removing the Flat Tire and Installing the Spare Tire (All Models Except SS)
    1. Do a safety check before proceeding. See Changing a Flat Tire. 2. If your vehicle has plastic wheel covers, use the wheel wrench to loosen the plastic wheel nut caps. Once the plastic wheel nut caps have been loosened with the wheel wrench, you can finish loosening them with your fingers. ...

    Chevrolet Cobalt Owners Manual

    Chevrolet Cobalt Service Manual


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