Restore Peak Performance to Your 1997 GM Vehicle
Is your 1997 Chevrolet Monte Carlo, Pontiac Grand Prix, or Buick Regal suffering from perplexing engine issues? A faulty Powertrain Control Module (PCM) is often the culprit behind a wide range of drivability problems, from poor fuel economy and erratic shifting to a frustrating no-start condition. This direct-fit PCM, part number 16227797, is the definitive solution to restore your vehicle’s original performance, reliability, and efficiency. It serves as the central computer for your engine and transmission, and when it fails, the entire system is compromised.
We take the guesswork out of the repair process. Unlike a generic module from a salvage yard, this unit is professionally programmed to your vehicle’s specific Vehicle Identification Number (VIN) before it ships. This critical step ensures that all factory settings, anti-theft systems (VATS/Passlock), and transmission shift points are perfectly calibrated for your car. This means no expensive trips to the dealership for programming—it’s ready for installation right out of the box.
From the Diagnostic Bay
A customer brought in a ’97 Buick Regal with the supercharged 3.8L engine. The complaint was a harsh 1-2 shift and a persistent P0753 (Shift Solenoid A Electrical) code that kept coming back, even after replacing the transmission solenoid pack. We spent hours checking wiring harnesses and connectors, all of which tested fine. On a hunch, we checked the command signal from the PCM and found it was weak and intermittent. We swapped in a known-good, programmed PCM, and the problem vanished instantly. The transmission was fine all along; the driver circuit inside the original module had failed. This is a classic example of how a bad PCM can send you chasing expensive mechanical ‘ghosts’.
Common Symptoms of a Failing 1997 Monte Carlo PCM
If you’re experiencing any of the following issues, a failing powertrain module is a very likely cause. Replacing it can resolve these frustrating and potentially damaging problems.
- ✔ Persistent Check Engine Light (CEL) with various codes
- ✔ Harsh or erratic automatic transmission shifting
- ✔ Engine stalling, stumbling, or misfiring
- ✔ Complete no-start condition where the engine cranks but won’t fire
- ✔ Noticeable decrease in fuel economy
- ✔ Failure to pass state emissions testing
- ✔ Intermittent loss of communication with diagnostic scan tools
Why VIN Programming is Essential
In mid-90s GM vehicles, the PCM is more than just an engine controller; it’s integrated with the vehicle’s security system. A module from another vehicle will trigger the anti-theft system, preventing the car from starting. Our VIN-specific programming service loads your car’s exact software and security information onto this module. This ensures it communicates seamlessly with the other computers in your vehicle, like the Body Control Module (BCM) and instrument cluster, for a true plug-and-play repair.
This module is a direct replacement for part numbers 16227797 and 19109047 and is compatible with a wide range of 1997 GM models equipped with the 3.4L V6 and 3.8L V6 engines (both naturally aspirated and supercharged). Please verify the fitment list below to ensure compatibility with your exact vehicle.
Vehicle Fitment:
This electronic control module is engineered for the following 1997 models:
- Chevrolet Monte Carlo: with 3.4L (6-207) engine
- Chevrolet Lumina: with 3.4L (6-207) engine
- Pontiac Bonneville: with 3.8L (6-231) supercharged engine
- Pontiac Grand Prix: with 3.8L (6-231) supercharged engine
- Pontiac Firebird: with 3.8L (6-231) engine
- Chevrolet Camaro: with 3.8L (6-231) engine
- Buick Regal: with 3.8L (6-231) supercharged engine
- Buick Park Avenue: with 3.8L (6-231) engine
- Buick Riviera: with 3.8L (6-231) engine
- Oldsmobile Eighty Eight: with 3.8L (6-231) supercharged engine
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 function, including fuel injection, ignition timing, emissions systems, and automatic transmission shift points, to ensure optimal performance and efficiency.
Is this part difficult to install?
Installation is typically straightforward. The PCM is usually located in the engine bay, often inside the air filter box. It involves disconnecting the battery, unplugging the electrical connectors, and unbolting the module. Since this unit comes pre-programmed, no special tools are required for the physical swap.
Will I need to do anything after installing the new module?
In some cases, you may need to perform a simple security relearn procedure to sync the new PCM with your vehicle’s anti-theft system. This procedure can be done without any special tools and typically involves a sequence of turning the key in the ignition. We can provide instructions for this process.
How do I provide my VIN for programming?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). You can typically add it as a note during checkout or send it to us in a message referencing your order number. We cannot ship the part until we receive your VIN.
What happens if I install a module that isn’t programmed?
An unprogrammed module from another vehicle will not work. It will have the incorrect engine and transmission calibration, and more importantly, it will not match your car’s anti-theft system, resulting in a no-start condition. Our programming service eliminates this problem.
This module has a different part number than my original. Will it work?
Yes. This module, 16227797, is the correct service replacement for several original part numbers, including 19109047. As long as your vehicle is on the compatibility list, this module will function correctly once programmed to your VIN.