Is your Pontiac Pursuit, Chevy Cobalt, or HHR suffering from frustrating and unpredictable engine problems? A persistent check engine light, rough idling, stalling, or a sudden drop in fuel economy are all classic signs of a failing Engine Control Module (ECM). Don’t let a faulty computer keep you off the road. This professionally programmed ECM is the reliable, straightforward solution to restore your vehicle’s performance and your peace of mind.
Common Symptoms & Your Solution
If you’re experiencing any of the issues below, a failing engine computer is the most likely culprit. This unit is the definitive fix for:
- Persistent Check Engine Light (CEL)
- Error codes such as P0601, P0602, or P0606
- Poor engine performance and hesitation
- Reduced fuel economy
- Intermittent stalling or difficulty starting
- Failure to communicate with diagnostic scan tools
Instead of risking a used part from a junkyard or paying steep dealership prices, our pre-programmed 2005-2006 Pontiac Pursuit ECM arrives ready for installation. We take your vehicle’s unique VIN and flash this module with the latest, most stable software updates from GM, ensuring optimal performance and compatibility right out of the box.
Features & Benefits
- ✔ Plug & Drive Installation: Arrives fully programmed to your specific VIN. No expensive trip to the dealer is required for programming.
- ✔ Latest GM Software: We flash the module with the newest updates, which can improve fuel efficiency, idle quality, and overall drivability.
- ✔ Guaranteed Compatibility: A direct replacement for a wide range of service numbers including 12599714, 12589998, 12597329, 12600882, 12600883, 12605766, and 12605765.
- ✔ Cost-Effective Repair: Get your vehicle back to factory-spec performance without the high cost and hassle of dealership service.
- ✔ One-Year Warranty: This unit is backed by our one-year replacement warranty, giving you confidence in your repair.
Expert Insight: The Critical Role of VIN Programming
As a technician with over two decades of experience, I’ve seen countless drivers get stuck with incorrect parts. Buying an unprogrammed ECM online or from a salvage yard might seem cheaper, but it’s a recipe for disaster. Without the correct VIN-specific software, your vehicle may not start, the transmission can shift incorrectly, and anti-theft systems will lock you out. Our process eliminates that risk entirely. We ensure the 2005-2006 Pontiac Pursuit ECM you receive is a perfect digital match for your car, just like the original one from the factory, but with all the latest software improvements included.
Frequently Asked Questions
Do I need to do any programming myself?
No. This ECM is delivered fully programmed to your vehicle’s VIN. In most cases, you will only need to perform a simple security relearn procedure, which typically involves cycling the key in the ignition and can be done in your driveway in about 10-15 minutes. We include instructions for this process.
Where do I provide my VIN?
After you complete your purchase, you can add your 17-digit VIN to the order notes or reply to your order confirmation email. We cannot ship your part until we have this information to program it correctly.
Will this fit my Chevy Cobalt or HHR?
Yes, absolutely. This ECM is compatible with the 2005-2006 Chevy Cobalt (2.2L) and the 2006 Chevy HHR (2.2L), in addition to the 2005-2006 Pontiac Pursuit. Please check the service number list in the description to confirm it matches a number on your original part.
How do I know for sure that my old ECM is bad?
While the symptoms listed above are strong indicators, it’s always best to have a qualified mechanic perform a full diagnostic. Common confirmation codes include P0601 (Internal Control Module Memory Check Sum Error) or a complete lack of communication with a professional scan tool. This ensures you are replacing the correct part.
What does having the ‘latest GM software’ do for my car?
Automakers often release software updates after a vehicle is sold to fix bugs, improve transmission shifting, optimize fuel consumption, and enhance engine performance. By flashing your replacement 2005-2006 Pontiac Pursuit ECM with these updates, you are getting a module that performs better than the original one did when it was new.