Is Your 1996 GM Vehicle Running Poorly?
If your 1996 Buick Century, Cavalier, S10, or other compatible GM vehicle is experiencing frustrating issues like a persistent check engine light, stalling, rough idling, or a no-start condition, the root cause is often a failing Powertrain Control Module (PCM). As the central computer for your engine and transmission, a faulty PCM can create a cascade of problems that are difficult to diagnose. This replacement PCM, part number 16215830, is the definitive solution to restore your vehicle’s performance, reliability, and efficiency.
From the Diagnostic Bay
We recently had a 1996 Chevy S10 in the shop that was driving the owner crazy. It had a random misfire that wouldn’t set a specific cylinder code, terrible fuel mileage, and would occasionally stall at stoplights. The owner had already replaced the spark plugs, wires, and even the fuel pump with no success. After hooking up our diagnostic scanner, we noticed the fuel trim and ignition timing data were erratic. We suspected the computer. We installed one of our pre-programmed PCMs, and the truck immediately idled smoothly. A quick test drive confirmed that the power was back and the hesitation was gone. The original PCM’s internal processor was failing, causing it to send incorrect commands to the engine. It’s a perfect example of how a bad computer can mimic a dozen other mechanical problems.
Why Choose a Pre-Programmed 1996 Century PCM?
Replacing an engine computer isn’t as simple as swapping a mechanical part. The PCM must be specifically calibrated to your vehicle’s unique Vehicle Identification Number (VIN). This unit is not just a part; it’s a complete, ready-to-install solution. We take care of the complex programming for you. Using the latest GM software updates, we flash this module with your car’s exact VIN. This ensures that it communicates perfectly with your engine, transmission, and all related sensors, just as the original did. This process eliminates the need for an expensive trip to the dealership for programming, saving you time and money.
Symptoms of a Failing PCM
- ✔ Persistent Check Engine Light (CEL) with various trouble codes.
- ✔ Engine stalls, runs rough, or misfires.
- ✔ The vehicle cranks but refuses to start.
- ✔ A noticeable drop in fuel economy.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Failure to pass state emissions testing.
- ✔ Intermittent issues that are hard to replicate.
Guaranteed Fitment and Compatibility
This Powertrain Control Module is a direct replacement for part numbers 16215830 and 16231851. It is guaranteed to fit and function correctly in the following vehicles:
- 1996 Buick Skylark (2.4L Engine)
- 1996 Pontiac Sunfire
- 1996 Oldsmobile Achieva (2.4L Engine)
- 1996 Chevrolet Beretta (2.2L Engine)
- 1996 Chevrolet Cavalier
- 1996 Oldsmobile Cutlass Ciera (2.2L Engine)
- 1996 Pontiac Grand Am (2.4L Engine)
- 1996 Chevrolet Corsica (2.2L Engine)
- 1996 Buick Century (2.2L Engine)
- 1996 Chevrolet S10 / GMC Sonoma (2.2L Engine)
To ensure a flawless installation, simply provide us with your vehicle’s VIN during or after checkout. Our technicians will handle the programming, so your part arrives ready to be installed.
Frequently Asked Questions
What is a PCM and what does it do?
The Powertrain Control Module (PCM) is your vehicle’s main computer. It controls all aspects of engine and transmission operation, including fuel injection, ignition timing, emissions systems, and shift points, to ensure optimal performance and efficiency.
Is this PCM ready to install when it arrives?
Yes! This module comes fully programmed to your vehicle’s specific VIN. This makes the installation process as simple as possible. In most cases, it is a plug-and-play installation, though some vehicles may require a simple security relearn procedure which can be done without special tools.
How do I provide my VIN?
You can add your 17-digit VIN to the notes section during checkout or send it to us in a message after you complete your purchase. We cannot ship your order until we receive the VIN, as the programming is essential.
Will this fix my car’s problem for sure?
While this PCM will correct any issues caused by a faulty computer, it’s crucial to ensure your vehicle has been properly diagnosed. This part will not fix problems related to other bad sensors, wiring issues, or mechanical failures. We recommend a thorough diagnosis by a qualified mechanic.
Do I need to perform a security relearn procedure?
For many GM vehicles from this era, a security relearn (also known as a VATS relearn) is necessary to allow the vehicle to start. This is a simple procedure that typically involves turning the key to the ‘ON’ position for 10-15 minutes, then off, and repeating two more times. Instructions are readily available online for your specific model.
What if my original part number is 16231851?
This module is a direct replacement for both 16215830 and 16231851. As long as your vehicle is on the compatibility list, this unit will be programmed to function perfectly as a replacement for either part number.