Description
2004 Nissan 350Z 3.5L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2004 Nissan 350Z 3.5L 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




Travis Palmer –
I was a bit nervous about ordering an ECU online for my 2004 Nissan 350Z, but this unit arrived quickly and was flawlessly VIN programmed right out of the box. The plug-and-play setup made installation straightforward—no extra trips to a mechanic needed. What impressed me most was the company’s excellent communication; they answered all my questions promptly and kept me updated throughout the shipping process. The free shipping was a nice bonus, too. Since swapping it in, my car runs just like new again, and I couldn’t be happier with the whole experience.
Cameron Allen –
I was really impressed with how smoothly everything went from start to finish. The 23710-CE820 ECM arrived sooner than I expected, and the best part was that it came VIN programmed and ready to go right out of the box. The team was very communicative and answered all my questions promptly, which gave me a lot of confidence in the purchase. Installing it on my 2004 Nissan 350Z was straightforward, and the car runs perfectly now. I definitely recommend this product and service to anyone needing a reliable ECM replacement.
Russell Baker –
I purchased the 23710-CE820 ECM for my 2004 Nissan 350Z and couldn’t be happier with the experience. The unit came VIN programmed and ready to install, which made the whole process so much easier. They offer free shipping, and the part arrived faster than expected. Their team also answered all my questions promptly, which gave me confidence in the purchase.
Elliot Webb –
The ECM arrived quickly with free shipping, and the plug-and-play setup made installation a breeze—highly recommend!
Adam Howard –
Fast shipping and a plug-and-play unit that installed without a hitch. Saved me a ton compared to dealer prices and the customer support was top notch.