Is Your GM Vehicle Experiencing Frustrating Engine Problems?
If you’re dealing with a check engine light that won’t go away, erratic engine behavior, stalling, or even a no-start condition, a failing Engine Control Module (ECM) is a very likely culprit. The ECM is the central computer of your vehicle, responsible for managing everything from fuel injection and ignition timing to transmission shifts and emissions control. When it fails, it can cause a cascade of confusing and difficult-to-diagnose issues, leaving your vehicle unreliable and unsafe to drive.
From the Diagnostic Bay
We recently had a 2011 Chevrolet Traverse come into the shop that was a real head-scratcher. The owner reported random stalling at stoplights, flickering dashboard lights, and a transmission that seemed to have a mind of its own. It was throwing a mix of communication and sensor codes that didn’t point to a single component. After hours of testing wiring harnesses and grounds, we finally connected a lab scope to the ECM’s main processor. We discovered intermittent voltage drops and data corruption, confirming the ECM itself was failing internally. Replacing it with a pre-programmed unit like this one, flashed with the latest GM software, resolved every single symptom. The customer was thrilled to have their reliable family vehicle back.
Symptoms of a Failing Engine Control Module
- ✔ Persistent Check Engine Light (CEL): The light stays on despite replacing sensors, or it illuminates with a variety of seemingly unrelated trouble codes.
- ✔ Engine Performance Issues: You may experience stalling, rough idling, engine misfires, hesitation during acceleration, or a noticeable decrease in power.
- ✔ Poor Fuel Economy: A faulty ECM can’t properly calculate the air-fuel mixture, often leading to a sudden and significant drop in MPG.
- ✔ Transmission Problems: The ECM works with the Transmission Control Module (TCM). A failing ECM can cause harsh shifting, delayed engagement, or getting stuck in one gear.
- ✔ Intermittent or Complete No-Start: The engine may crank but refuse to start, or it may fail to start only under certain conditions (e.g., when hot).
- ✔ Communication Errors: Your mechanic’s scan tool may be unable to communicate with the vehicle’s computer system.
The Direct-Fit, Programmed Solution: A 2010 Allure ECM
Don’t let a faulty computer keep your vehicle off the road. This replacement Engine Control Module, part number 19300015, is the definitive solution for a wide range of 2010-2011 GM vehicles equipped with the 3.6L V6 engine. This isn’t just a generic part off a shelf; it’s a complete service. When you place your order, you provide us with your vehicle’s VIN. We then flash the module with the latest, most stable factory software directly from GM, ensuring it is perfectly matched to your vehicle’s specific configuration and options. This critical step eliminates the need for an expensive trip to the dealership for programming, saving you time and money.
This module is a direct replacement for several part numbers, including 19300015, 19300014, 12617230, 12636355, and 12635019. By installing this unit, you are restoring the brain of your vehicle’s engine management system, ensuring proper operation, peak performance, and restored reliability for years to come.
Important Note for Camaro and Lacrosse Owners
Due to the specific anti-theft (immobilizer) systems in the 2010-2011 Camaro and Buick Lacrosse, a simple VIN flash is not sufficient for a plug-and-play installation. To ensure seamless operation, we require you to send us your original ECM. We will professionally extract the unique immobilizer data from your old module and transfer it to your new one. This makes the new module a true plug-and-play part, preventing any starting issues after installation. We will contact you with shipping instructions after your purchase if you own one of these models.
Frequently Asked Questions
What is an ECM and what does it do?
The ECM, or Engine Control Module, is your car’s main computer. It controls the engine’s fuel injectors, spark plugs, and idle speed, while also monitoring emissions and working with the transmission to ensure smooth operation. It’s essential for performance, fuel economy, and reliability.
Why do I need to provide my VIN?
Your Vehicle Identification Number (VIN) allows us to program the ECM with the exact software and calibrations for your car’s specific options, engine, and transmission. This ensures perfect compatibility and function without needing a trip to the dealer.
Is this part difficult to install?
For most models listed, this is a plug-and-play part once programmed to your VIN. The physical installation typically involves disconnecting the battery, unplugging the electrical connectors, and unbolting the old module. However, we always recommend installation by a qualified technician.
What if I have a Camaro or a Lacrosse?
For these specific models, we require your original ECM to transfer the immobilizer security data to the new unit. This makes it plug-and-play. We will contact you with instructions on how to send your old module to us after you complete your purchase.
Will this fix my car’s specific problem?
This ECM will resolve issues directly caused by a faulty engine computer. While the symptoms listed are common indicators of ECM failure, it’s crucial to have your vehicle properly diagnosed by a professional to rule out other potential causes like bad sensors or wiring problems.
Does this ECM come with a warranty?
Yes, all of our electronic modules come with a warranty against defects. Please check the warranty information section on this page for specific terms and duration.