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 Tail Pipe, Replace
    Warning: Exhaust system operates at high temperatures. Allow system to cool before servicing or burns or personal injury may result. Do not use oil or grease-based lubricants on isolators. These lubricants may cause deterioration of rubber. This can lead to separa ...

    Chevrolet Cobalt Owners Manual

    Chevrolet Cobalt Service Manual


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