Programmed 2009-2010 Pontiac G3 ECM | 12636386 | Plug & Drive

Restore Your Pontiac’s Performance and Reliability

Is your Pontiac G3 suffering from a persistent check engine light, erratic idling, stalling, or poor fuel economy? These frustrating issues often point directly to a failing Engine Control Module (ECM), the central computer of your vehicle. Don’t let a faulty module keep you off the road. This professionally programmed ECM is the direct, reliable solution to restore your car’s original performance and get you back to driving with confidence.

Common Symptoms of a Failing ECM & Your Solution

A failing ECM can cause a wide range of confusing problems that can be difficult to diagnose. If your vehicle is experiencing any of the following, our pre-programmed module is the definitive fix:

• Check Engine Light: Specifically for internal module failure codes like P0601, P0602, P0605, or P0606.
• No-Start or Hard-Start: The engine cranks but refuses to start, or only starts after many attempts.
• Poor Performance: Noticeable loss of power, hesitation during acceleration, and rough running.
• Reduced Fuel Economy: Your car is suddenly using more gas than usual without a change in driving habits.
• Intermittent Stalling: The engine shuts off unexpectedly while driving or when stopped at an intersection.

Instead of paying for expensive diagnostic fees and dealership programming, this unit provides a straightforward solution. Our expertly programmed 2009-2010 Pontiac G3 ECM arrives ready to be installed, addressing these issues at their source.

Features & Benefits

• ✔ VIN-Programmed for Your Vehicle: We flash the unit with the latest GM software updates using your specific VIN. This ensures perfect compatibility and function right out of the box, eliminating the need for an expensive trip to the dealership.
• ✔ Direct-Fit Replacement: Engineered as a direct replacement for part numbers 12636386, 12679199, 12642927, and more, guaranteeing a seamless installation process without any modifications.
• ✔ Restored Engine Performance: Corrects issues like rough idling, hesitation, and poor acceleration by restoring precise factory control over fuel delivery, ignition timing, and emissions systems.
• ✔ Improved Fuel Economy: A properly functioning ECM optimizes all engine parameters, which can lead to significant improvements in your vehicle’s gas mileage, saving you money at the pump.
• ✔ Solve Annoying Check Engine Lights: This module is the core solution for internal ECM-related diagnostic trouble codes (DTCs), helping you pass emissions tests and clear that light from your dash for good.
• ✔ One-Year Replacement Warranty: This unit is backed by our one-year replacement warranty. Drive with the assurance that your purchase is protected.

Expert Insight: The Foundation of Your Engine’s Health

We once helped a customer with a 2009 Aveo (which uses the same module) that had been to three different shops. It would randomly stall at traffic lights, and no one could pinpoint the issue. They were about to give up on the car. After installing one of our pre-programmed ECMs, the problem vanished instantly. It wasn’t a complex wiring issue or a dozen faulty sensors—it was the vehicle’s brain. This highlights how a correctly programmed 2009-2010 Pontiac G3 ECM is often the foundational fix for many frustrating, hard-to-diagnose running problems, restoring the car’s reliability when other attempts have failed.

Take control of your repair and avoid unnecessary costs. By providing us with your VIN upon purchase, you receive a fully updated, plug-and-drive component tailored specifically to your vehicle. This is the smartest, most efficient way to get your dependable daily driver back on the road. This module is the correct fit for a wide range of GM compacts, including the Cruze, Sonic, Aveo, and Trax, ensuring a quality solution for your 2009-2010 Pontiac G3 ECM needs.

Frequently Asked Questions