Programmed 1997 Eighty Eight Powertrain Control Module | PCM ECU ECM | 16227797

Restore Your Vehicle’s Core Performance and Reliability

Is your Oldsmobile Eighty Eight or another classic 1997 GM vehicle suffering from frustrating, hard-to-diagnose issues? Problems like a persistent check engine light, erratic engine behavior, or a no-start condition often point directly to a failing Powertrain Control Module (PCM). As a technician with over two decades of experience, I’ve seen firsthand how a faulty PCM—the brain of your vehicle’s engine and transmission—can cause a cascade of problems. This isn’t just a part; it’s the central command center for your engine’s performance, fuel economy, and emissions.

We take the guesswork and hassle out of the repair. This replacement PCM, compatible with part numbers 16227797 and 19109047, arrives at your door programmed with the latest GM software updates specifically for your vehicle. Simply provide us with your Vehicle Identification Number (VIN) after purchase, and we handle the complex programming. This means no expensive trips to the dealership for flashing, saving you time and money. Installing our 1997 Eighty Eight Powertrain Control Module is the most direct path to getting your trusted vehicle running smoothly again.

Common Signs of a Failing PCM

If you’re experiencing any of the following, a failing PCM is a likely culprit. I’ve diagnosed hundreds of these modules over the years, and these symptoms are the most frequent indicators:

• ✔ Unexplained Check Engine Light (CEL) with codes like P0601, P0602, or P0605.
• ✔ Engine stalling, stumbling, or misfiring for no apparent reason.
• ✔ The vehicle won’t start, even with a good battery and starter.
• ✔ A sudden, noticeable drop in fuel mileage.
• ✔ Harsh or erratic automatic transmission shifting.
• ✔ Failure to communicate with a diagnostic scan tool.

A Straightforward Guide to Installation

Replacing the PCM on these GM vehicles is a job most DIYers can handle with basic tools. Our pre-programming service makes it a true plug-and-play repair. Follow these steps for a successful installation:

1. Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait at least 15 minutes for any residual power to discharge.
2. Locate the PCM: On most of these models, the PCM is located in the engine bay, often inside the air filter housing for protection.
3. Disconnect the Harnesses: Carefully unclip and remove the electrical wiring harnesses connected to the old module. Inspect the connectors for any corrosion or damaged pins.
4. Remove the Old Module: Unbolt the old PCM from its mounting bracket and remove it from the vehicle.
5. Install the New Module: Seat your new, pre-programmed PCM into the mounting bracket and secure it. Reconnect the wiring harnesses, ensuring they click firmly into place.
6. Reconnect the Battery: Reattach the negative battery terminal.
7. Perform Security Relearn (If Needed): Turn the key to the ‘ON’ position (without starting) for 10-15 minutes. The ‘Security’ or ‘Theft’ light should turn off. Turn the key off for 10 seconds, then start the vehicle. It’s now ready to drive.

Verified Vehicle Compatibility

This module is a direct-fit replacement for the following 1997 models. Please verify your engine and options to ensure a perfect match.

Frequently Asked Questions