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. ...

See also:

Chevrolet Cobalt Service & Repair Manual. Engine Valve Seat Grind
It is usually recommended to send head to machine shop for valve seat grinding. A suitable valve grinding tool kit is required to grind valve seats. Valve guides must be in good condition before grinding because a pilot is used in guide to center stones. ...