Chevrolet Cobalt Service & Repair Manual: Engine Management

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Initialization Sequence The EBCM performs one initialization test each ignition cycle. The initialization of the EBCM occurs when the EBCM detects the there is a minimum of 500 RPM fro ...

Emission Controls

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Chevrolet Cobalt Service & Repair Manual. Exhaust Manifold Gasket R&R
1. Remove the secondary air injection bolts (2) and nuts (1), Fig. 1. 2. Remove the secondary air injection studs (3 and 4), Fig. 2. 3. Remove the secondary air injection valve assembly (1), Fig. ...