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. DIC Warnings and Messages
    These messages appear if there is a problem detected in one of your vehicle's systems. A message clears when the vehicle's condition is no longer present. To acknowledge a message and clear it from the display, press and hold any of the DIC buttons. If the condition is still present, the warnin ...

    Chevrolet Cobalt Owners Manual

    Chevrolet Cobalt Service Manual


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