Restore Peak Performance to Your GM Vehicle
If you’re dealing with a frustrating check engine light, erratic engine behavior, or a car that just won’t start, a failing Powertrain Control Module (PCM) is often the culprit. As the central computer for your engine and transmission, its health is critical. This isn’t just a replacement part; it’s a direct solution, programmed specifically for your vehicle using your VIN. We install the latest GM factory software updates, which can resolve issues the original programming couldn’t. Stop chasing electronic gremlins and get a reliable fix that restores your vehicle’s drivability and efficiency.
Is Your GM Vehicle Showing These Symptoms?
- ✔ Persistent Check Engine Light (CEL)
- ✔ Engine stalling or stumbling for no apparent reason
- ✔ Harsh or erratic automatic transmission shifting
- ✔ A noticeable drop in fuel economy
- ✔ The engine cranks but refuses to start
- ✔ Communication error codes, such as P0601, P0605, or other U-codes
From the Diagnostic Bay: The Intermittent No-Start Mystery
I once had a 1998 Pontiac Grand Prix (which uses this exact PCM) in my bay that was a real head-scratcher. The owner said it would randomly refuse to start, but only after it was warm. We checked the fuel pump, ignition system, and crank sensor—all tested fine. There were no clear trouble codes. On a hunch, I monitored the PCM’s data stream during a crank-no-start event and noticed the injector pulse command was dropping out. The internal driver circuit inside the PCM was failing under heat. We replaced it with a VIN-programmed module like this one, and the problem was solved instantly. These intermittent issues are a classic sign of internal PCM failure.
A Straightforward Guide to Installation
Installing your new 1998 Intrigue Powertrain Control Module is a manageable job for a DIYer with basic tools. This module is designed for a direct fit, and since we program it beforehand, you can skip the expensive trip to the dealership for flashing.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Locate the PCM: On most of these GM vehicles, the PCM is located inside the air filter box in the engine compartment. You may need to remove the air filter assembly for access.
- Disconnect the Connectors: Carefully unclip the wiring harness connectors from the old module. There are typically two or three large multi-pin connectors. Inspect them for any corrosion or damage.
- Remove the Old Module: Unbolt the old PCM from its mounting bracket and remove it from the vehicle.
- Install the New Module: Seat the new, programmed PCM into the bracket and secure it. Reconnect the wiring harnesses, ensuring they click securely into place.
- Reconnect and Relearn: Reconnect the negative battery terminal. In many cases, you will need to perform a simple security relearn procedure (often called the Passlock or Passkey relearn) which involves cycling the key. This procedure can easily be found online for your specific model and takes about 30 minutes.
Verified Vehicle Compatibility
This module is a direct replacement for service number 09356741 and is compatible with a wide range of GM vehicles. Please confirm your vehicle is on this list. Note that some models require a specific ID number, which can be found on your original part’s label.
Fits The Following Models:
ACHIEVA 98 (3.1L) | ALERO 99 (3.4L, check ID) | BONNEVILLE 98 | CAMARO 98 (3.8L) | CENTURY 98 (3.1L) | CUTLASS 98-99 (check ID for 99) | EIGHTY EIGHT 98 | FIREBIRD 98 (3.8L) | GRAND AM 98-99 (3.1L or 3.4L, check ID for 99) | GRAND PRIX 98 | INTRIGUE 98 | LESABRE 98 (3.8L) | LUMINA CAR 98 | MALIBU 98 (3.1L) | MONTE CARLO 98 | PARK AVENUE 98 (3.8L) | REGAL 98 | RIVIERA 98 (3.8L) | SILHOUETTE 98 | SKYLARK 98 (3.1L) | TRANS SPORT 98 | VENTURE 98 (3.4L)
Frequently Asked Questions
Do I need to program this module?
No. We handle all the programming for you before shipment. Simply provide your vehicle’s 17-digit VIN during or after checkout, and it will arrive ready to install with the latest GM software.
Where is my VIN located?
Your Vehicle Identification Number (VIN) can be found on your vehicle’s registration, insurance card, or on a small plate on the driver’s side of the dashboard, visible through the windshield.
Will this fix my car’s hard shifting?
In many cases, yes. The PCM controls transmission shift points and line pressure. If the module is failing, it can cause erratic or harsh shifting. This part, with fresh software, can restore smooth transmission operation.
Is any other work required after installation?
Besides the physical installation, you will likely need to perform a security relearn procedure. This syncs the new PCM with your vehicle’s anti-theft system. It’s a simple process you can do yourself with just the ignition key.
What makes this better than a junkyard part?
A used part from a junkyard will not be programmed for your specific VIN, may have the same faults as your old one, and won’t have the latest software. Our module is tested, professionally programmed to your vehicle, and contains critical updates from GM for improved performance and reliability.