Are you battling a persistent Check Engine Light, experiencing strange stalling, or dealing with a vehicle that simply won’t start? A failing Engine Control Module (ECM) can turn your reliable daily driver into a source of constant frustration. This professionally programmed engine computer is the definitive, hassle-free solution to get your vehicle back on the road, running smoothly and efficiently, without an expensive trip to the dealership.
Common Symptoms & Your Solution
A faulty ECM can manifest in numerous ways, often mimicking other sensor failures. If you’re experiencing any of the following, a failing engine computer is a likely culprit:
- Check Engine Light (CEL) is on with communication error codes (like U-codes) or internal processor failure codes (P0601, P0606).
- No-start or hard-start condition, especially when the engine is warm.
- Poor engine performance, including rough idling, hesitation, or stalling.
- Noticeable decrease in fuel economy.
- Intermittent electrical issues that seem to have no other cause.
This unit is your direct solution. We take a quality replacement ECM and flash it with the latest GM-certified software, specifically matched to your vehicle’s unique Vehicle Identification Number (VIN). This process ensures all systems, from the engine and transmission to the anti-theft security, communicate perfectly. When you receive your programmed 12667002 ECM, it’s ready for a straightforward installation.
Features & Benefits
- ✔ Arrives Ready to Install: This module is pre-programmed to your vehicle’s VIN. No extra trips to the dealer for expensive flashing are required.
- ✔ Guaranteed Compatibility: By using your VIN, we ensure this ECM is a perfect match for your vehicle’s specific options and systems.
- ✔ Restored Performance & Efficiency: Loaded with the newest GM software updates, this computer helps restore original fuel economy, shifting patterns, and engine power.
- ✔ Solves Complex Electrical Problems: Corrects frustrating issues caused by an internal computer failure, getting you back on the road with confidence.
- ✔ Smart, Cost-Effective Repair: Get a reliable, plug-and-play solution without paying high dealership prices for parts and labor.
- ✔ Peace of Mind Included: This unit is backed by our one-year replacement warranty.
An Expert’s Note on VIN Programming
“In my 20+ years of diagnostics, I’ve seen countless vehicle owners waste time and money on parts they didn’t need, only to find the core issue was the ECM. In modern GM vehicles, the ECM is the ‘brain’ that communicates with dozens of other modules. It’s not just about engine timing; it’s tied to the anti-theft system, the transmission, the ABS, and more. A junkyard part simply won’t work because it isn’t coded to your car’s unique digital handshake. Our VIN programming service isn’t just a convenience—it’s the critical step that makes this repair possible at home, ensuring all systems integrate seamlessly, just as the factory intended.”
Don’t let a bad computer keep you off the road. This programmed 12667002 ECM is the most reliable and efficient way to restore your vehicle’s brainpower and your driving confidence.
Frequently Asked Questions
Do I need to do any additional programming?
No. This ECM comes fully programmed to the VIN you provide. In most cases, it is a direct plug-and-play installation. Some vehicles may require a simple security relearn procedure, which takes a few minutes and does not require any special tools.
Where do I provide my vehicle’s VIN?
After you complete your purchase, you will need to send us your 17-digit VIN. We will provide clear instructions on how to send it to us to ensure a smooth and fast programming process.
My original part number is 12666070. Will this work?
Yes. This ECM is a direct replacement for several part numbers, including 12667002, 12666070, and 12667189. As long as your vehicle is on the compatibility list, we will program it to work perfectly.
Is this a brand new part?
This is a high-quality, tested replacement part that has been meticulously inspected to meet or exceed original equipment performance. It is programmed with the latest software for your vehicle.
What is the warranty on this ECM?
This unit is backed by our one-year replacement warranty, giving you confidence in your repair.
How do I know for sure my ECM is the problem?
While the symptoms listed are strong indicators of ECM failure, professional diagnosis is always recommended. A common sign is a lack of communication with a professional scan tool or specific internal processor fault codes. This programmed 12667002 ECM is the solution once the module has been identified as the point of failure.