Get Your Truck Running Right Again
Is your trusty GM truck, van, or SUV suddenly running rough, stalling, or refusing to start? A failing Engine Control Module (ECM) is often the culprit behind these frustrating and unpredictable issues. Instead of dealing with the high costs of a dealership or the gamble of a junkyard part, get the definitive solution. This ECM is professionally programmed to your vehicle’s specific VIN, loaded with the latest GM software updates, and ready to restore the performance and reliability you depend on.
Common Symptoms & Your Solution
If you’re experiencing any of the following, a faulty engine computer is a likely cause. This professionally programmed module is designed to be the direct solution for these problems:
- Erratic or rough engine idle
- Stalling for no apparent reason
- Poor fuel economy
- Failure to pass emissions tests
- Illuminated Check Engine Light (CEL) with communication-related codes (e.g., P0601, P0605)
- Complete no-start condition where the engine cranks but won’t fire
- Harsh or incorrect transmission shifting
Ordering our Programmed 9366810 ECM is the most efficient way to get your vehicle back in service. We handle the complex programming, so you can focus on the straightforward installation.
Features & Tangible Benefits
- ✔ VIN-Programmed for Your Vehicle: We flash the computer with your vehicle’s unique VIN and the latest GM factory software. This ensures perfect communication with your vehicle’s systems, just like the original part.
- ✔ Plug & Play Design: Once programmed, this module is ready to be installed without the need for an expensive trip to the dealer for programming. A simple security relearn procedure may be required, which can be done in your driveway.
- ✔ Solves Common Driveability Issues: By replacing the faulty brain of your engine management system, you directly address the root cause of many performance problems, restoring smooth operation and power.
- ✔ Cost-Effective & Reliable: This is a dependable, tested component from a salvaged vehicle, offering a smart and affordable alternative to a new part without sacrificing quality.
- ✔ Peace of Mind Included: This unit is backed by our one-year replacement warranty. Drive with confidence knowing your purchase is protected.
Expert Insight: The Heart of Your GM Vehicle
In these late ’90s GM trucks and vans, the ECM is more than just an engine controller—it’s the central command center. It manages everything from the air/fuel mixture and spark timing to transmission shift points and anti-lock brake communication. When it fails, the symptoms can be confusing and widespread. Using a generic, non-programmed module can create even more problems. That’s why a Programmed 9366810 ECM, specifically flashed to your VIN, is critical. It ensures all vehicle systems work together seamlessly, just as the engineers intended, giving you back the dependable workhorse you rely on.
Frequently Asked Questions
How do I provide my Vehicle Identification Number (VIN)?
After you complete your purchase, you will need to send us your 17-digit VIN. You can typically add it as a note during checkout or reply to your order confirmation email. We cannot program and ship the module without it.
Will I need to do anything after installing this ECM?
In most cases, you will need to perform a security relearn procedure (also known as a VATS or Passlock relearn). This procedure syncs the new computer with your vehicle’s anti-theft system and can usually be done at home with just the ignition key. Instructions are widely available online for your specific model.
Is this a new computer?
No, this is a high-quality, used OEM computer that has been carefully removed from a salvaged vehicle. Each unit is tested and then programmed with the latest software for your specific VIN, ensuring reliable performance.
How can I be sure this part will fit my vehicle?
Please check the extensive fitment list on this page and ensure your vehicle is listed. The most important step is to match the part number. This module replaces part numbers 09355699, 16266645, 9355699, and several others listed. Providing your VIN ensures we program it correctly for your exact make and model options.
What if my original part number is slightly different?
This ECM, part number 9366810, is a direct replacement for several other GM service numbers, including the very common 09355699. As long as your vehicle is on the compatibility list, this Programmed 9366810 ECM will function correctly once flashed to your VIN.