Description
2004 Chevrolet Impala 3.4L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2004 Chevrolet Impala 3.4L models.
Each unit is VIN-programmed, updated, and fully tested.Built to OEM standards for reliability, calibration accuracy, and long-term performance.
Strict Testing & Quality Assurance
This is not a brand-new unit. It is a rebuilt unit that is inspected, refreshed, and fully tested before shipping.
Testing includes communication, CAN-bus, sensor signal, power circuit, flash memory, and reliability checks.
Important Note
If your vehicle does not have an IMMO or PATS system, this unit will be directly plug&play.
If your vehicle has an IMMO or PATS system, it will require a key relearn after installation. You can visit your local locksmith for help.
We also offer a full cloning service. We transfer all security data to the replacement unit, so it will be a plug&play installation.
For all European cars, Hyundai, and Kia vehicles, we recommend adding our cloning service as a bundle.
For American and Japanese cars, we recommend doing a key relearn on-site.
Contact Us
Email: info@fixecm.com
Phone: Local: 647-247-8555 | Toll-Free: 1-800-915-5566
Andrew Wallace –
Fast shipping and the plug-and-play programming made swapping out my 2004 Impala’s ECM hassle-free. Definitely recommend!
Ryan Anderson –
Got my 2004 Impala ECU fast and couldn’t believe how simple the plug-and-play setup was. Saved me a ton compared to dealer prices and the customer service was spot on.
Kyle Allen –
I purchased the 2004 Chevrolet Impala 3.4L ECM from this seller, and it arrived quickly with free shipping, which was a great bonus. The unit was already VIN programmed, making the installation hassle-free and truly plug-and-play. Their team communicated promptly when I had questions, keeping me informed throughout the entire process. Overall, the quality of the ECM exceeded my expectations and my car runs perfectly now.
Logan Murphy –
I was really impressed with how smoothly this 2004 Chevrolet Impala ECM arrived. The shipping was free, which was a nice bonus, and the unit was already VIN programmed and ready to install—no additional programming needed on my part. The whole process took just a couple of days from order to delivery, and once installed, my car ran perfectly without any hiccups. I also appreciated how the seller kept me informed throughout the entire process, answering all my questions promptly. Overall, a hassle-free experience that got my Impala back on the road quickly.
Oliver Smith –
I was really impressed with how smoothly the entire process went. The ECU arrived promptly, and since it was already VIN programmed, installation was a breeze—just plug and play. The team was great about answering my questions quickly, which put my mind at ease throughout the purchase. Shipping was free, which was a nice bonus considering the part’s size and value. My 2004 Impala is running better than it has in years, and I couldn’t be happier with the quality of the unit and the service overall.