Chevrolet Cobalt Service & Repair Manual: Fuel Injection

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 Idl ...

Component Service

Engine Control Module (ECM) 1. Retrieve percentage of remaining engine oil life using a scan tool, then record remaining engine oil life. 2. ...

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Chevrolet Cobalt Service & Repair Manual. Relearn
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 from the ECM by means of a serial data message and the stop lamp switch is not applied. The initial ...