Chevrolet Sonic Repair Manual: Engine Control

Internal Combustion Powertrain Control

General

Other materials:

Tire and Wheel Assembly Runout Measurement - On-Vehicle
Raise and support the vehicle. Closely inspect each tire for proper and even bead seating. If any of the tire beads were not properly or evenly seated, reseat the tire bead, then proceed to step 4. Refer to Tire and Wheel Removal and Installation. Wrap the circumferenc ...

Charge Air Cooler Inlet Air Hose Replacement
Removal Procedure Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection. Remove the front bumper fascia. Refer to Front Bumper Fascia Replacement. Loosen the charge air cooler inlet air pipe clamp (1) at the ...

Engine Control Module Description
The Engine Control Module (ECM) interacts with many emission related components and systems, and monitors emission related components and systems for deterioration. OBD II diagnostics monitor the system performance and a diagnostic trouble code (DTC) sets if the system performance degrades. Th ...