Description
2009 Chevrolet Impala 3.9L ECM / ECU – VIN Programmed | Plug & Play
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2009 Chevrolet Impala 3.9L models.
Each unit is VIN-programmed, updated, and fully tested for a true plug-and-play installation with no dealer visit required.
Built to OEM standards for reliability, calibration accuracy, and long-term performance.
Strict Testing & Quality Assurance
Every ECU is inspected, refreshed, and verified through advanced diagnostic tools. Testing includes:
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Complete communication & CAN-bus verification
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Sensor input/output and signal integrity checks
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Injector & ignition pulse simulation
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Power, ground, and load-circuit analysis
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Flash memory integrity and checksum validation
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Thermal and voltage-stress testing to confirm reliability
This ensures a fully functional, reliable, plug-and-play module you can install with confidence.
Important Note
Some vehicles equipped with IMMO (Immobilizer) or PATS (Passive Anti-Theft System) may require additional key programming after installation. This is normal for models where security data must be synchronized with the vehicle’s body control system.
For a 100% plug-and-play solution with no relearns, no key programming, and no compatibility issues, we recommend our ECU Cloning Service, which transfers all original security, immobilizer, and configuration data directly into the replacement unit.
Contact Us
Email: info@fixecm.com
Phone: Local: 647-247-8555 | Toll-Free: 1-800-915-5566
Brandon Torres –
I recently replaced the ECM on my 2009 Chevy Impala with this exact unit, and I couldn’t be happier with how smoothly everything went. The fact that it was VIN programmed out of the box saved me so much hassle—no extra trips to the dealership or complicated coding sessions. Installation was really straightforward; I just plugged it in and fired up the engine, and it ran perfectly right away. Shipping was surprisingly quick too, which was a relief since I needed my car back on the road ASAP. If you’re dealing with a faulty ECU, this is definitely the way to go.
Connor Hall –
I was a bit nervous about replacing the ECM on my 2009 Chevrolet Impala, but this unit made the whole process surprisingly easy. It arrived quickly, well-packaged, and was already programmed to my VIN, which saved me a ton of hassle. Installation was straightforward—I just plugged it in, and everything fired up without any issues. The car runs smoothly now, and I didn’t have to visit the dealership or wait around for programming. Overall, this was a hassle-free buy that got me back on the road fast. I’d definitely recommend it to anyone needing a reliable replacement ECM.
Caleb Johnson –
Installed this ECM in minutes, and my Impala runs perfectly now—super quick delivery too!
Paul Baker –
This ECM arrived quickly and was exactly as described, already VIN programmed for my 2009 Impala 3.9L. Installation was straightforward and truly plug-and-play, saving me a lot of hassle. I appreciated the clear instructions and responsive customer support when I had a couple of questions. Overall, it works perfectly and my car runs smoothly again.