| 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
Fuel InjectionChevrolet Cobalt Service & Repair Manual. Malfunction Indicator Lamp, Diagnosis & Testing
The Malfunction Indicator Lamp
(MIL) is located on the Instrument Panel Cluster (IPC). The MIL informs
the driver that an emission system fault has occurred and that the engine
control system requires service. The Engine Control Module (ECM) monitors
the MIL control circuit fo ...