1998 Grand Prix PCM 16236757 VIN Programmed Engine Computer

Is Your 1998 Grand Prix Running Rough, Stalling, or Throwing Codes?

If you’re dealing with frustrating engine problems like a persistent Check Engine Light, erratic shifting, a no-start condition, or poor fuel economy, the root cause is often a failing Powertrain Control Module (PCM). After more than two decades on the road, the original electronic components inside these modules can degrade, leading to a host of drivability issues. In my shop, I’ve seen countless late-90s GM vehicles where a faulty PCM was the hidden culprit behind problems that mechanics had been chasing for weeks.

The “Brain Transplant” Your Vehicle Needs: A Fully Programmed Solution

This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take a quality-tested PCM, part number 16236757, and flash it with the latest official GM software calibration specifically for your vehicle. All we need is your Vehicle Identification Number (VIN) at checkout. This critical step ensures that the module communicates perfectly with your engine, transmission, and all related systems, restoring the performance and reliability you expect. Forget expensive dealer visits for programming—this module arrives at your door ready to go.

Key Benefits of This VIN-Programmed 1998 Grand Prix PCM

• ✔ Plug & Play Installation: Arrives pre-flashed to your VIN. No extra programming needed.
• ✔ Solves Common Issues: A direct fix for no-start conditions, false sensor codes, harsh shifting, and poor engine performance.
• ✔ Updated GM Software: Programmed with the newest calibrations from General Motors to correct original factory drivability concerns.
• ✔ Cost-Effective Repair: Avoids the high costs and scheduling hassles of a dealership service department.

Easy Installation Guide: Get Back on the Road in Under an Hour

Installing your new PCM is a straightforward job you can do with basic hand tools. On most of these GM vehicles, the PCM is located inside the factory air filter box for protection and cooling.

1. Safety First: Disconnect the negative terminal from your car’s battery to prevent any electrical shorts.
2. Locate the PCM: Open the hood and find the plastic air filter housing on the driver’s side of the engine compartment.
3. Access the Module: Unclip and remove the top of the air filter housing. The PCM is the metal box sitting inside.
4. Disconnect the Harnesses: Carefully unclip the two or three large wiring harness connectors from the old PCM. The levers on the connectors will help eject them.
5. Swap the Modules: Remove the old PCM from its mounting bracket and set the new one in its place.
6. Reconnect and Reassemble: Firmly plug the wiring harnesses into your new PCM until they click. Reassemble the air filter housing and reconnect your battery terminal. Your vehicle is now ready to start.

Cross-Reference and Fitment Information

To ensure a perfect match, please verify that your original module has one of the following service numbers printed on its label. This part, 16236757, is a direct replacement for:

Compatible Service Numbers: 09356741, 16236757, 9356741, 9357034, 9357440, 9366314

This module is compatible with a wide range of 1998 and 1999 General Motors vehicles. Please check the list below for your specific model: