Is Your 1996 GM Vehicle Running Rough?
If you’re dealing with frustrating issues like a persistent check engine light, poor fuel economy, stalling, or erratic shifting in your 1996 Chevrolet Cavalier, Pontiac Sunfire, or other compatible GM model, the root cause is often a failing Powertrain Control Module (PCM). The PCM is the electronic brain of your vehicle, responsible for managing everything from fuel injection and ignition timing to transmission shifting and emissions control. When it starts to fail, it can create a cascade of problems that are difficult to diagnose and can leave your vehicle unreliable.
This replacement PCM, part number 16231851, is the definitive solution to restore your vehicle’s performance and reliability. We take the guesswork out of the repair by programming the module specifically for your vehicle using the VIN you provide. This ensures that it arrives ready for a straightforward installation, loaded with the latest software updates from GM for optimal performance and efficiency.
From the Diagnostic Bay
I once had a 1996 Chevy S10 in the shop that was driving the owner crazy. It had an intermittent no-start condition and would occasionally stall at stoplights. The owner had already replaced the ignition coil, spark plugs, and even the fuel pump based on advice from forums. The codes were all over the place—misfires, O2 sensor faults, you name it. After checking all the wiring and sensors, we hooked up a scope to the injector drivers at the PCM. We found that the signal for cylinder 3 would just drop out randomly. The problem wasn’t any of the parts he had replaced; it was a failing driver inside the original PCM. We installed a VIN-programmed module just like this one, and the truck ran perfectly. It’s a classic example of how a faulty computer can mimic a dozen other mechanical problems.
Symptoms of a Failing 1996 Cavalier PCM
- ✔ Check Engine Light is on with various, often inconsistent, trouble codes.
- ✔ Engine stalling, stumbling, or hesitating during acceleration.
- ✔ Noticeable decrease in fuel mileage.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Complete no-start condition where the engine cranks but won’t fire up.
- ✔ Failure to pass an emissions or smog test.
- ✔ Communication errors with diagnostic scan tools.
The Plug-and-Play Solution
Don’t let a faulty engine computer keep you off the road. This module is a direct-fit replacement for original part numbers 16231851 and 16215830, ensuring a perfect match for your vehicle’s hardware. The critical difference is our professional programming service. By flashing the module with your vehicle’s specific VIN, we ensure all factory-set parameters for the engine, transmission, and options are correctly loaded. This eliminates the need for an expensive trip to the dealership for programming, saving you time and money.
This process is simple: place your order, provide us with your vehicle’s 17-digit VIN, and we handle the rest. The module you receive will be ready to install right out of the box, allowing you to get your car back to factory-spec operation quickly and efficiently.
Broad Compatibility Across the GM Lineup
While this is a perfect solution for a 1996 Cavalier PCM, this versatile module is also the correct electronic control unit for a wide range of popular GM vehicles from that model year. It is compatible with the following models and engine configurations:
- 1996 Buick Skylark (2.4L)
- 1996 Buick Century (2.2L)
- 1996 Oldsmobile Achieva (2.4L)
- 1996 Oldsmobile Ciera (2.2L)
- 1996 Pontiac Sunfire
- 1996 Pontiac Grand Am (2.4L)
- 1996 Chevrolet Beretta (2.2L)
- 1996 Chevrolet Corsica (2.2L)
- 1996 Chevrolet S10 / GMC Sonoma (2.2L)
Frequently Asked Questions
Is this part difficult to install?
Installation is typically straightforward. The PCM is usually located in the engine bay or under the dashboard. It involves disconnecting the battery, unplugging the electrical connectors from the old module, unbolting it, and then installing the new one in the reverse order. Most DIY mechanics with basic tools can complete the job in under an hour.
What happens if I don’t provide my VIN?
We cannot ship the module without your Vehicle Identification Number (VIN). The programming is essential for the part to function correctly with your vehicle’s specific engine, transmission, and other systems. The order will be held until the VIN is provided.
Will this fix my check engine light?
If the check engine light is caused by a faulty PCM, then yes, this part will resolve the issue. However, it’s important to ensure that the codes are not being caused by other failing components like sensors or wiring. We recommend a proper diagnosis before ordering.
Do I need to have any other procedures done after installation?
For some 1996 GM vehicles, a security relearn procedure may be required after installation to allow the vehicle to start. This is a simple procedure that typically involves turning the key on and off in a specific sequence and can be done without any special tools. Instructions are readily available online for your specific model.
Where can I find my VIN?
Your 17-digit VIN can be found on a metal plate on the driver’s side of the dashboard (visible through the windshield), on the driver’s side door jamb sticker, or on your vehicle’s registration and insurance documents.