End the Frustration of a Failing Engine Computer
Is your Chevrolet Impala suffering from a persistent check engine light, unpredictable stalling, or a frustrating no-start condition? These are classic signs of a failing Engine Control Module (ECM), the brain of your vehicle’s engine. Driving with a faulty ECM can lead to poor fuel economy, failed emissions tests, and a constant worry about whether your car will get you to your destination. It’s time to restore your vehicle’s reliability and your peace of mind with a dependable, pre-programmed solution.
Common Symptoms & Your Direct Solution
A failing ECM can cause a wide range of confusing issues. If you’re experiencing any of the following, this module is the definitive solution you’ve been looking for:
- Persistent Check Engine Light (CEL) with codes like P0601, P0606, or other internal controller errors.
- Engine Stalling or Misfiring for no apparent reason, especially after warming up.
- No-Start or Hard-Start Conditions where the engine cranks but won’t turn over.
- Poor Fuel Economy and a noticeable drop in engine performance.
- Communication Errors with diagnostic scan tools.
- Erratic Transmission Shifting or other electronically controlled system failures.
This professionally programmed ECM is the direct-fit answer to these problems, restoring your vehicle’s factory-spec operation and getting you back on the road with confidence.
Features & Benefits
- ✔ Plug & Play Installation: This unit arrives pre-programmed to your vehicle’s specific VIN. No extra trips to the dealer for expensive flashing are required.
- ✔ Latest GM Software: We flash your ECM with the newest, most stable software updates from General Motors, ensuring optimal engine performance, fuel efficiency, and emissions control.
- ✔ Guaranteed Compatibility: By programming to your VIN, we ensure a perfect electronic handshake with your car’s existing systems, including the anti-theft security. This is the key to a successful repair.
- ✔ Cost-Effective Solution: Avoid the high costs and scheduling headaches of a dealership repair. This is a direct, affordable path to fixing your vehicle correctly.
- ✔ Direct Replacement: This Programmed 2017-2020 Impala ECM 12667189 is a direct replacement for part numbers 12667002, 12666070, and 12667189.
- ✔ Peace of Mind: This unit is backed by our one-year replacement warranty.
An Expert’s Note on VIN Programming
“In modern GM vehicles, the ECM is more than just an engine controller; it’s the heart of the vehicle’s security system. Simply swapping in a used module from another car won’t work—the vehicle will not start due to an anti-theft mismatch. Our VIN programming service is not just a convenience, it’s a necessity. We pair this specific Programmed 2017-2020 Impala ECM 12667189 to your car’s digital fingerprint, ensuring it’s recognized by all other modules. This process saves you from immobilization issues and the need for specialized, expensive tools, making the repair straightforward and successful the first time.”
Frequently Asked Questions
Do I need to do any additional programming myself?
No. This ECM is a complete plug-and-play solution. We handle all the programming to your specific VIN before shipment. In some rare cases, a security or crank-relearn procedure may be needed, which can be done without special tools. Instructions can be provided upon request.
How do I provide you with my VIN?
After you complete your purchase, simply send us a message with your 17-digit Vehicle Identification Number (VIN). We cannot ship the part until we receive this information, as the programming is essential for it to function in your car.
Will this fit my vehicle?
This ECM is a direct fit for the 2017-2020 Chevrolet Impala and several other GM models listed in the fitment guide. Please verify that your original part number is one of the following: 12667002, 12666070, or 12667189 to ensure perfect compatibility.
Will this fix my specific problem and turn off my check engine light?
This module will resolve any issues directly caused by a faulty ECM, including many common diagnostic trouble codes. However, if your check engine light is on due to another failing component (like an oxygen sensor or ignition coil), that separate issue will still need to be addressed.
What tools are required for installation?
Installation typically requires only basic hand tools, such as a socket set and ratchet. The most critical step is to disconnect the vehicle’s battery before you begin to prevent any electrical damage. The ECM is usually located in an accessible spot in the engine bay.