Is Your 1997 GM Vehicle Running Rough?
If you’re dealing with a persistent Check Engine Light, unpredictable stalling, poor fuel economy, or a car that just won’t start, the problem often points directly to a failing Powertrain Control Module (PCM). As the brain of your vehicle’s engine and transmission, when the PCM falters, it can create a host of frustrating and difficult-to-diagnose issues. I’ve seen countless 1997 GM cars, from the Monte Carlo to the supercharged Bonneville, come into the shop with these exact symptoms, leaving owners chasing ghosts by replacing perfectly good sensors and pumps.
The Direct Solution: A VIN-Programmed PCM
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take a quality-tested PCM (compatible with part numbers 16227797 and 19109047) and flash it with the latest official GM software calibration specific to your vehicle’s VIN. This critical step ensures that the module communicates perfectly with your engine, transmission, and all related systems, restoring the original performance and reliability you expect.
From the Shop Floor: A Common Misdiagnosis
“A customer’s ’97 Grand Prix with the 3.8L Supercharged came in last week. The car had an intermittent no-start and would occasionally stall at red lights. They had already spent a small fortune replacing the fuel pump and the crankshaft position sensor, but the problem persisted. We connected our scanner and immediately saw intermittent communication loss with the PCM. Instead of more guesswork, we installed a correctly programmed module. The car fired up instantly and ran smoothly. It’s a classic case I’ve seen dozens of times on these 90s GM platforms—the symptoms mimic other failures, but the root cause is the computer itself.”
Why Choose Our Programmed 1997 Monte Carlo PCM?
- ✔ VIN-Specific Programming: We flash the module with your vehicle’s exact VIN, ensuring it works correctly right out of the box.
- ✔ Latest GM Updates: Your module arrives with the most current software from General Motors, addressing known bugs and improving performance.
- ✔ No Dealer Required: This module is prepared for a straightforward installation, saving you a costly trip to the dealership for programming.
- ✔ Restores Performance: Corrects common failure symptoms like rough idle, poor shifting, false sensor codes, and no-start conditions.
- ✔ Broad Compatibility: A reliable solution for a wide range of popular 1997 GM vehicles (see full fitment list below).
Plug-and-Play Installation: Get Back on the Road Fast
Installing your new PCM is a straightforward process that you can do at home with basic tools. No complex programming is needed on your end.
- Safety First: Disconnect the negative terminal from your vehicle’s battery.
- Locate the PCM: On most of these vehicles, the PCM is located in the engine bay, often inside the air filter housing.
- Disconnect Connectors: Carefully unclip the wiring harness connectors from the old module. Inspect the pins for any corrosion or damage before proceeding.
- Remove Old Module: Unbolt the old PCM from its mounting bracket and remove it from the vehicle.
- Install New Module: Mount your new, pre-programmed PCM and securely reconnect the wiring harnesses. You should hear a distinct click.
- Reconnect Battery: Re-attach the negative battery terminal. The vehicle is now ready to start.
Guaranteed Fitment for Your 1997 Vehicle
This electronic control module is a direct-fit replacement for the following 1997 models equipped with the specified engines:
- Chevrolet Monte Carlo: with 3.4L V6 Engine (6-207)
- Chevrolet Lumina: with 3.4L V6 Engine (6-207)
- Chevrolet Camaro: with 3.8L V6 Engine (6-231)
- Pontiac Firebird: with 3.8L V6 Engine (6-231)
- Pontiac Bonneville: with 3.8L Supercharged V6 Engine (6-231)
- Pontiac Grand Prix: with 3.8L Supercharged V6 Engine (6-231)
- Buick Regal: with 3.8L Supercharged V6 Engine (6-231)
- Buick Riviera: with 3.8L V6 Engine (6-231)
- Buick Park Avenue: with 3.8L V6 Engine (6-231)
- Oldsmobile Eighty Eight: with 3.8L Supercharged V6 Engine (6-231)
After purchasing, please send us your vehicle’s 17-digit VIN so we can program the module before shipment.