Is Your 1997 GM Running Rough? Get a Reliable, Programmed Solution.
If you’re dealing with a frustrating no-start condition, erratic engine behavior, poor fuel mileage, or a persistent check engine light on your 1997 Buick Riviera or another compatible GM vehicle, a failing Powertrain Control Module (PCM) is often the culprit. As the central computer for your engine and transmission, its health is critical. In my 20+ years of diagnostics, I’ve seen these modules cause some of the most confusing symptoms, from harsh shifting to stalling for no apparent reason. Don’t keep guessing or throwing parts at the problem. This is the direct, reliable fix you need.
The Simple Fix: A VIN-Programmed 1997 Riviera PCM
Forget expensive dealership visits and the hassle of finding a shop that can program older modules. We take care of the complex part for you. This Powertrain Control Module is professionally programmed with the latest GM software updates specifically for your vehicle’s Vehicle Identification Number (VIN). It arrives at your door ready for a straightforward installation, restoring the precise control and performance your vehicle had when it left the factory.
Expert Pro Tip: Check Your Harness Before Installation
Before you install your new PCM, take 10 minutes to inspect the main engine wiring harness, especially where it runs near the exhaust manifolds and accessory brackets. Over two decades, heat and vibration can cause the loom to become brittle and wires to chafe. A shorted sensor wire (like for the crankshaft position sensor or an O2 sensor) can send incorrect voltage back to the PCM, potentially damaging the driver circuits in the new module. A quick visual inspection and a wiggle test of the harness can prevent a repeat failure and save you a major headache. This is a common issue I’ve seen cause comebacks on these 3.8L and 3.4L engines.
Key Benefits of This Programmed PCM:
- ✔ VIN-Specific Programming: We flash the module with your vehicle’s exact VIN, ensuring it communicates perfectly with all other systems. Just provide your VIN after purchase.
- ✔ No Additional Programming Needed: This module is a true plug-and-play solution. Install it, connect the battery, and you’re ready to go.
- ✔ Solves Common Issues: A direct solution for symptoms like check engine lights, rough idle, stalling, poor acceleration, and erratic transmission shifting.
- ✔ Latest GM Software: Loaded with the most current factory calibrations from General Motors to optimize performance and efficiency.
- ✔ Direct Replacement: Guaranteed compatibility with original part numbers 19109047 and 16227797.
Plug-and-Play Installation: No Dealer Visit Required
You can get your vehicle back on the road without a trip to the dealership. Follow these general steps for a successful installation:
- Safety First: Disconnect the negative terminal from your vehicle’s battery and secure it away from the post.
- Locate the PCM: On most of these vehicles, the PCM is located inside the air filter box assembly. You will typically need to remove the air filter cover and filter to access it.
- Disconnect Connectors: Carefully unclip and remove the electrical harness connectors from the old module. Inspect the pins for any corrosion or damage.
- Remove the Old Module: Unbolt or unclip the old PCM from its mounting bracket within the airbox.
- Install the New Module: Seat your new, pre-programmed PCM into the mounting bracket and secure it.
- Reconnect Everything: Firmly plug the harness connectors into the new module until they click. Reinstall the air filter and cover, then reconnect the negative battery terminal.
- Final Check: Start the vehicle. It may take a moment to idle smoothly as it completes its internal checks. Your check engine light should be off and drivability restored.
Guaranteed Vehicle Compatibility
This module is a confirmed fit for the following 1997 models with the specified engines. Please verify your vehicle is on this list before ordering.
- BONNEVILLE: 1997 – Electronic Control Module; (6-231, 3.8L), w/supercharged option
- CAMARO: 1997 – Electronic Control Module; 6-231 (3.8L)
- EIGHTY EIGHT: 1997 – Electronic Control Module; (6-231, 3.8L), w/supercharged option
- FIREBIRD: 1997 – Electronic Control Module; 6-231 (3.8L)
- GRAND PRIX: 1997 – Electronic Control Module; 6-231 (3.8L), w/supercharged option
- LUMINA CAR: 1997 – Electronic Control Module; 6-207 (3.4L)
- MONTE CARLO: 1997 – Electronic Control Module; 6-207 (3.4L)
- PARK AVENUE: 1997 – Electronic Control Module; (6-231, 3.8L)
- REGAL: 1997 – Electronic Control Module; (6-231, 3.8L), w/supercharged option
- RIVIERA: 1997 – Electronic Control Module; (6-231, 3.8L)