Is Your 1997 GM Vehicle Running Rough?
If you’re experiencing perplexing issues like erratic engine behavior, poor fuel economy, harsh shifting, or a no-start condition in your 1997 Pontiac Trans Sport or another compatible GM vehicle, the culprit is often the Powertrain Control Module (PCM). As the central computer of your vehicle, the PCM is responsible for managing everything from fuel injection and ignition timing to transmission shift points and emissions controls. When it begins to fail, it can create a cascade of problems that are often difficult to diagnose.
This replacement PCM, part number 16217058, is the definitive solution to restore your vehicle’s factory performance and reliability. We take the guesswork out of the repair by programming the module specifically for your vehicle using your VIN. This ensures that it arrives with the latest GM software updates, ready for a straightforward installation without the need for an expensive trip to the dealership for programming.
From the Diagnostic Bay
We had a 1997 Pontiac Grand Prix come into the shop with a complaint of intermittent stalling and a check engine light for a random misfire. The owner had already replaced the spark plugs, wires, and even the ignition control module with no success. After hooking up our scanner, we noticed erratic data from the crank sensor, but the sensor itself tested fine. On a hunch, we checked the PCM connectors and found no corrosion. The final step was to test the PCM drivers, which confirmed our suspicion: the PCM itself was failing internally, causing it to misinterpret sensor data. Installing a VIN-programmed module like this one solved the problem instantly. It’s a reminder that the PCM can mimic many other component failures.
Common Symptoms of a Failing 1997 Trans Sport PCM
A failing powertrain module can manifest in various ways. If you’re noticing any of the following issues, it’s a strong indicator that your PCM may need replacement:
- ✔ Check Engine Light: The check engine light is illuminated, often with codes related to multiple sensors, communication errors, or internal processor faults.
- ✔ No-Start or Hard Starting: The engine cranks but refuses to start, or takes an unusually long time to fire up, either hot or cold.
- ✔ Poor Engine Performance: You may experience a noticeable loss of power, hesitation during acceleration, rough idling, or engine stumbling.
- ✔ Reduced Fuel Economy: A sudden and unexplained drop in your vehicle’s gas mileage is a common symptom, as the PCM can no longer efficiently manage the air-fuel mixture.
- ✔ Transmission Shifting Problems: The automatic transmission may shift harshly, erratically, or get stuck in one gear (limp mode) because the PCM controls its operation.
- ✔ Failed Emissions Test: An inability to pass a smog check is often directly related to a malfunctioning PCM that cannot properly manage the vehicle’s emissions systems.
Plug-and-Play Solution Programmed to Your VIN
Don’t settle for a generic, unprogrammed module that will require additional costs and time at a repair shop. This PCM is a direct-fit replacement for part numbers 16217058 and 16218070. The process is simple: after placing your order, you provide us with your vehicle’s VIN. Our technicians will then flash the module with the correct, vehicle-specific software and the latest updates from General Motors. This ensures seamless integration with your vehicle’s existing systems. When you receive the part, installation is as simple as disconnecting the battery, swapping the old module for the new one, and reconnecting the battery. In most cases, no complicated security relearn procedure is required.
Full Vehicle Fitment List
This Powertrain Control Module is compatible with a wide range of 1997 General Motors vehicles. Please verify your vehicle and engine options below:
- ACHIEVA 97: Electronic Control Module; 6-191 (3.1L)
- BONNEVILLE 97: Electronic Control Module; (6-231, 3.8L), w/o supercharged option
- CENTURY 97: Electronic Control Module; (6-191, 3.1L)
- CUTLASS 97: Electronic Control Module; Supreme
- EIGHTY EIGHT 97: Electronic Control Module; (6-231, 3.8L), w/o supercharged option
- GRAND AM 97: Electronic Control Module; 6-191 (3.1L)
- GRAND PRIX 97: Electronic Control Module; 6-191 (3.1L)
- GRAND PRIX 97: Electronic Control Module; 6-231 (3.8L), w/o supercharged option
- LESABRE 97: Electronic Control Module; (6-231, 3.8L)
- LUMINA CAR 97: Electronic Control Module; 6-191 (3.1L)
- MONTE CARLO 97: Electronic Control Module; 6-191 (3.1L)
- REGAL 97: Electronic Control Module; (6-231, 3.8L), w/o supercharged option
- SILHOUETTE 97: Electronic Control Module; (6-207, 3.4L)
- SKYLARK 97: Electronic Control Module; 6-191 (3.1L)
- TRANS SPORT 97: Electronic Control Module; (6-207, 3.4L)
- VENTURE 97: Electronic Control Module; (6-207, 3.4L)
Frequently Asked Questions
Do I need to have this PCM programmed?
No. We handle all the programming for you before shipment. Simply provide your vehicle’s VIN at or after checkout, and the module will arrive ready to install.
What does the Powertrain Control Module (PCM) do?
The PCM is the main computer that controls the engine and transmission systems. It reads data from various sensors to manage fuel delivery, spark timing, transmission shifts, and emissions, ensuring optimal performance and efficiency.
Where is the PCM located on my 1997 GM vehicle?
On most of these 1997 models, including the Trans Sport, Venture, and Silhouette, the PCM is located inside the air filter box in the engine compartment. This protects it from the elements but still allows for relatively easy access for replacement.
Is this a simple DIY job?
Yes, for most individuals with basic mechanical skills. The process involves disconnecting the vehicle’s battery, accessing the old PCM, unplugging its electrical connectors, swapping it with the new pre-programmed unit, and reconnecting everything. No special tools are typically required.
Will this fix my check engine light?
If the check engine light and associated symptoms are caused by a faulty PCM, then yes, this part will resolve the issue. It’s important to properly diagnose the problem first, as the light can also be triggered by failing sensors or other components.