Restore Your Vehicle’s Performance and Reliability
Is your 1998 Oldsmobile Intrigue or another late-90s GM vehicle suffering from a persistent Check Engine Light, erratic shifting, a no-start condition, or poor fuel economy? After 20 years in the bay, I’ve seen these symptoms countless times, and they often point directly to a failing Powertrain Control Module (PCM). This isn’t just a part; it’s the brain of your engine and transmission, and when it falters, your whole vehicle suffers. Don’t let a faulty computer keep you off the road. This replacement PCM is the reliable, straightforward solution you’ve been looking for.
This module, part number 9356741, is meticulously prepared to be a direct-fit replacement. The biggest hurdle with PCM replacement is usually the costly and time-consuming programming required at a dealership. We eliminate that step entirely. Simply provide us with your vehicle’s VIN during checkout, and our technicians will flash the module with the latest, most stable GM software updates specific to your car. This ensures optimal performance, fuel efficiency, and emissions compliance right out of the box. It’s a professional-grade fix made accessible for both seasoned mechanics and DIYers.
Case Study: A Tricky Diagnosis
A customer brought in a ’98 Grand Prix with an intermittent no-start and a random stalling issue that no one else could figure out. The scan tool showed no hard codes, just a few lost communication errors. After checking the basics—fuel pressure, spark, and battery—I focused on the PCM. On these older GM platforms, heat and vibration can cause microscopic cracks in the PCM’s internal solder joints. We swapped in one of our VIN-programmed modules, and the car fired up instantly and ran perfectly. It’s a classic failure mode, and this replacement 1998 Intrigue PCM is the definitive fix.
Common Signs of a Failing GM PCM
If your vehicle is experiencing any of the following, a faulty engine computer could be the culprit. I’ve personally linked these issues to failing PCMs on hundreds of GM vehicles from this era.
- âś” Check Engine Light is illuminated, often with codes like P0601, P0602, or P0605 (Internal Control Module Errors).
- âś” The engine cranks but refuses to start.
- âś” Unexplained stalling or rough idling.
- âś” Noticeable decrease in fuel mileage.
- âś” Harsh or erratic automatic transmission shifting.
- âś” Failure to pass state emissions testing.
- âś” Communication issues with diagnostic scan tools.
A Straightforward Guide to Installation
Replacing the 1998 Intrigue PCM is a manageable job for a DIYer with basic tools. Follow these steps carefully for a smooth installation.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait 10-15 minutes for the system to fully discharge before you begin.
- Locate the PCM: On most of these vehicles, the PCM is located in the engine compartment, often inside the air filter housing or mounted to the firewall. Refer to a service manual for your specific model if you’re unsure.
- Disconnect the Wiring: Carefully unclip and remove the electrical connectors from the old PCM. These connectors have locking tabs; be gentle to avoid breaking them.
- Remove the Old Module: Unbolt the old PCM from its mounting bracket. Keep the hardware, as you may need to reuse it.
- Install the New Module: Mount your new, pre-programmed PCM onto the bracket and securely fasten it.
- Reconnect and Secure: Plug the wiring harnesses back into the new module until they click firmly into place. Reconnect the negative battery terminal.
- Final Step: Some vehicles require a security relearn procedure (often called a Passlock or Passkey relearn), which typically involves cycling the key in the ignition. Instructions are readily available online for your specific model. This step is crucial for the vehicle to start.
Verified Vehicle Compatibility
This module is a direct replacement for a wide range of GM vehicles. Please verify your part number or match your vehicle from the list below. This part is compatible with service numbers: 09356741, 16236757, 9357034, 9357440, and 9366314.
Choosing this pre-programmed 1998 Intrigue PCM is the smartest way to get your car back to factory-spec operation without the dealership price tag. It’s a solution I’ve trusted in my own work for years.
Frequently Asked Questions
Frequently Asked Questions
Do I need to do any programming myself?
No. We handle all the programming before we ship the part. Just provide your VIN at checkout, and the module will arrive ready for installation and a security relearn procedure.
What is a VIN and where do I find it?
The VIN (Vehicle Identification Number) is a unique 17-digit code for your car. You can find it on your vehicle’s registration, insurance card, or on a small plate on the driver’s side of the dashboard, visible through the windshield.
Is this part difficult to install at home?
For most DIYers with basic tools, this is a very manageable repair. The most important part is disconnecting the battery and performing the security relearn procedure after installation. Please see our installation guide above.
Will this fix my check engine light?
If the check engine light is caused by an internal failure of the original PCM (common codes P0601-P0605), then yes, this part is the correct fix. However, you should always have the codes professionally diagnosed to ensure the PCM is the root cause.
What if I have a different part number on my old module?
This module replaces several service numbers, including 09356741, 16236757, 9357034, 9357440, and 9366314. As long as your original part number is on this list, our module will be a compatible replacement.