Is Your Chevy Spark Running Rough, Stalling, or Showing a Check Engine Light?
As a technician with over two decades of experience under the hood, I’ve seen countless drivers frustrated by mysterious engine problems. A failing Engine Control Module, or ECM, is often the hidden culprit behind issues that seem impossible to pin down. Your 2014-2015 Spark is a reliable car, but when its electronic brain starts to fail, it can lead to poor fuel economy, erratic idling, and even leave you stranded. This isn’t just an inconvenience; it’s a critical failure that needs a reliable solution.
A Real-World Scenario: Just last month, a 2015 Chevy Spark was towed into my shop. The owner had replaced spark plugs and an oxygen sensor trying to fix a persistent Check Engine Light (P0601 – Internal Control Module Memory Check Sum Error). After confirming the vehicle’s wiring was intact, we identified the ECM itself was faulty. Swapping in a pre-programmed module like this one had the car running perfectly in under an hour, saving the customer hundreds compared to a dealership visit.
The Smart Solution: A VIN-Programmed ECM Delivered to Your Door
Forget the hassle and high cost of the dealership. This Engine Control Module is the definitive fix for your vehicle. We take the guesswork out of the repair by programming the module specifically for your car using your Vehicle Identification Number (VIN). This means it arrives at your door with the latest GM software updates already installed, ready for a straightforward installation.
- โ VIN-Specific Programming Included: We flash the module with your car’s exact data for seamless communication and performance.
- โ No Dealer Visit Required: This module is ready to install right out of the box, saving you time and expensive programming fees.
- โ Restores Original Performance: Corrects issues with fuel delivery, ignition timing, and transmission shifting controlled by the ECM.
- โ Clears Persistent Trouble Codes: Provides a lasting fix for internal ECM error codes (like P0601, P0606) that won’t go away.
Common Symptoms of a Failing 2014-2015 Spark ECM
If you’re experiencing any of the following, a faulty Engine Control Module is a likely cause. This module is designed to correct these exact problems:
- โ Check Engine Light is on with no clear cause
- โ Engine stalling or cutting out unexpectedly
- โ Rough or inconsistent idle
- โ Noticeable decrease in fuel mileage (MPG)
- โ Car won’t start, but the battery and starter are good
- โ Communication errors with diagnostic scan tools
Simple Installation Guide
Replacing your ECM is a manageable DIY job for most car owners. Follow these steps for a successful installation:
- Safety First: Always disconnect the negative terminal from your car’s battery before beginning any electronic work.
- Locate the ECM: On the 2014-2015 Spark, the ECM is typically located in the engine bay, often near the battery or firewall.
- Disconnect the Harnesses: Carefully unclip and remove the electrical wiring harnesses connected to the old module. Inspect the connectors for any corrosion or bent pins.
- Remove the Old Module: Unbolt the old ECM from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed ECM in place and securely reconnect the wiring harnesses.
- Reconnect Battery: Re-attach the negative battery terminal. The vehicle may need to complete a security relearn procedure, which often involves turning the key to the ‘ON’ position for 10-15 minutes before starting.
Expert Pro Tip from the Shop Floor
Before installing your new ECM, take a moment to consider what caused the original one to fail. In many cases, an external component is the root cause. I strongly recommend checking your vehicle’s ignition coils and alternator. A faulty alternator can create voltage spikes that damage sensitive electronics, and a shorted ignition coil can back-feed and destroy the ECM’s driver circuits. A quick check now can prevent you from damaging your new part.
Guaranteed Fitment & Part Number Compatibility
This module is a direct replacement for a wide range of General Motors vehicles. Your purchase is guaranteed to be compatible if your original module has one of the following part numbers:
Interchangeable Part Numbers: 12668866, 12668994, 12643636, 12663405, 12670335, 22819494, 12692200
While this listing is focused on the 2014-2015 Spark, this E78 series controller also fits models like the Cruze, Sonic, Trax, Encore, Volt, and various Silverado, Sierra, Express, and Savana vehicles. Please verify your part number to ensure perfect compatibility.