Is Your 2.2L Engine Running Rough?
If your Pontiac Grand Am, Chevy Cavalier, or Malibu Classic is experiencing frustrating issues like a persistent check engine light, poor fuel economy, stalling, or a complete no-start condition, a failing Engine Control Module (ECM) is a very likely culprit. The ECM is the brain of your vehicle’s engine, controlling everything from fuel mixture and ignition timing to emissions systems. When it fails, it can cause a wide range of problems that can be difficult to diagnose. This genuine, used OEM Engine Control Module, part numbers 19210073 and 12576162, is the definitive solution to restore your vehicle’s performance and reliability.
From the Diagnostic Bay
We had a 2004 Chevy Cavalier with the 2.2L Ecotec come in with a random misfire code (P0300) that just wouldn’t go away. The owner had already replaced the spark plugs, ignition coil, and even the fuel injectors. The misfire was intermittent but getting worse. After hooking up our diagnostic scope, we noticed the control signal from the ECM to the ignition module was erratic. The module itself was fine; the problem was the driver circuit inside the original ECM. We installed one of these pre-programmed modules, performed the security relearn, and the car ran perfectly. It’s a classic case where swapping parts doesn’t work, but addressing the core electronic failure does.
Common Symptoms of a Failing ECM
- ✔ Persistent Check Engine Light (CEL) with various codes
- ✔ Engine stalling, stumbling, or hesitating during acceleration
- ✔ Noticeable decrease in fuel efficiency
- ✔ Complete no-start or hard-starting conditions
- ✔ Rough or erratic idling
- ✔ Communication errors with diagnostic scan tools
- ✔ Automatic transmission shifting problems
Your Direct-Fit 2003-2005 Grand Am ECM Solution
Don’t settle for a generic, unprogrammed module that will require expensive dealer intervention. We take the guesswork and hassle out of the repair. This part is a tested, reliable unit sourced from a salvaged vehicle. The critical difference is our professional programming service. Before we ship the part, our technicians will flash it with the latest official GM software updates, precisely matched to your vehicle using the VIN you provide. This ensures that all factory parameters are correct for your specific make, model, and options, making installation straightforward and effective.
Simple Process, Lasting Results
- Place Your Order: Add this item to your cart and complete the checkout process.
- Provide Your VIN: Reply to your order confirmation email with your vehicle’s 17-digit VIN. This is mandatory for programming.
- We Program & Ship: Our technicians will program the module specifically for your car. We then ship it directly to you.
- Install & Relearn: Once installed, you may need to perform a simple security relearn procedure (often called a Passlock or anti-theft relearn), which can typically be done without special tools.
Guaranteed Fitment For 2.2L Engines:
- Pontiac Grand Am: 2003, 2004, 2005
- Pontiac Sunfire: 2003, 2004, 2005
- Chevrolet Cavalier: 2003, 2004, 2005
- Chevrolet Malibu (Classic): 2004, 2005 (VIN N, 4th digit)
- Oldsmobile Alero: 2003, 2004
Restore your vehicle’s proper function and get back on the road with confidence. This pre-programmed 2003-2005 Grand Am ECM is the most efficient and reliable way to fix your engine management issues.
Frequently Asked Questions
Do I need to do any programming myself?
No. We handle all the programming before the module is shipped to you. We use the VIN you provide to load the correct GM-certified software for your specific vehicle. You will not need a trip to the dealership for flashing.
What is a VIN and why do you need it?
The VIN (Vehicle Identification Number) is a unique 17-digit code for your car, usually found on the driver’s side dashboard or door jamb. It tells us everything we need to know about your vehicle’s options to load the correct software onto the ECM.
Is this a plug-and-play part?
It is nearly plug-and-play. After installing the module, you will likely need to perform a security relearn procedure. This process syncs the new ECM with your vehicle’s anti-theft system and can usually be done in your driveway in about 30 minutes with just your car key. Instructions can be easily found online for your specific model.
What if I have the other part number, 12576162?
Part numbers 19210073 and 12576162 are interchangeable for the applications listed. As long as your vehicle is on the compatibility list, this module will be the correct replacement, regardless of which of these two numbers was on your original part.
Is this a new part?
No, this is a high-quality, tested, and fully functional used part that has been sourced from a salvaged vehicle. Each unit is inspected to ensure it is ready for programming and installation.