Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2006COBALT SS, 4D SEDAN, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 522 (ENGINE CONTROLS AND FUEL - 3.9L - INTRODUCTION (2 OF 2))REPAIR INSTRUCTIONSENGINE CONTROL MODULE REPLACEMENTINSTALLATION PROCEDURE
2006 Chevrolet Cobalt SS, 4D Sedan, Standard
Installation Procedure
2006 Chevrolet Cobalt SS, 4D Sedan, StandardSECTION Installation Procedure
WARNING: This page is about a different car, the 2007 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
- Install the ECM to the air cleaner lower housing.
- Connect the ECM electrical connectors (2).
- Install the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .
- Install the left front inner fender brace. Refer to Front Fender Upper Diagonal Brace Replacement .
- Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection (RPOs LZE/LZ4/LZ8) .
- Program the new ECM. Refer to Control Module References .
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.