1997 Grand Prix PCM Powertrain Control Module 16218070

Restore Your Engine’s Performance!

Get your 1997 GM vehicle running smoothly again with this Powertrain Control Module. We program it to your car’s specific VIN before shipping, ensuring a simple installation and restored factory performance. Order today to fix stalling, poor mileage, and check engine light issues!

$74.95

+11.99 USPS Priority Shipping

Availability: In stock



SKU: 590-04480-21 Categories: ,
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Is Your 1997 GM Vehicle Experiencing Engine Problems?

If your 1997 Pontiac Grand Prix, Buick Regal, Chevy Lumina, or another compatible GM model is suffering from erratic behavior like stalling, poor fuel economy, harsh shifting, or a persistent check engine light, the root cause is often a failing 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 frustrating and difficult-to-diagnose issues.

Don’t let a faulty computer keep your car off the road. This replacement PCM, part number 16218070, is the definitive solution to restore your vehicle’s performance, reliability, and drivability. We take the guesswork out of the repair by pre-programming the module specifically for your car using your Vehicle Identification Number (VIN). This ensures that all factory settings and the latest GM software updates are loaded, making the installation process as straightforward as possible.

From the Diagnostic Bay

We had a 1997 Buick LeSabre come into the shop with a complaint of intermittent stalling and a check engine light that other shops couldn’t solve. The owner had already replaced the crank sensor, cam sensor, and a set of spark plugs and wires based on generic trouble codes. After hooking up our professional scan tool, we noticed that the PCM was intermittently losing communication and that sensor data for the throttle position would drop out randomly. Instead of throwing more parts at it, we tested the circuits and confirmed the PCM itself was the culprit. After installing a VIN-programmed module like this one and performing a quick security relearn, the LeSabre ran perfectly. It’s a classic case of how a failing computer can mimic other component failures, costing the owner time and money.

Common Symptoms of a Failing 1997 Grand Prix PCM

A failing powertrain control module can manifest in numerous ways. If you’re experiencing any of the following issues, it’s a strong indicator that your vehicle’s main computer needs attention. Replacing your faulty module with this pre-programmed unit can resolve these problems.

  • ✔ Check Engine Light: The most common symptom. The light may be on constantly or intermittently, often with codes related to sensors, emissions, or internal module failure.
  • ✔ No-Start or Hard-Start Condition: The engine may crank but fail to start, or take an unusually long time to fire up, especially when warm.
  • ✔ Poor Engine Performance: You may notice a significant loss of power, engine hesitation, stumbling, or misfiring during acceleration.
  • ✔ Reduced Fuel Economy: A failing PCM can’t efficiently manage the air-fuel mixture, leading to a noticeable drop in your miles per gallon (MPG).
  • ✔ Erratic Transmission Shifting: The PCM also controls transmission functions. You might experience harsh shifts, delayed engagement, or getting stuck in a single gear (limp mode).
  • ✔ Intermittent Stalling: The engine may shut off unexpectedly while driving or when coming to a stop.
  • ✔ Failed Emissions Test: Incorrect engine management will almost certainly lead to a failed smog or emissions inspection.

A Simple, Reliable Solution Programmed for Your Vehicle

This isn’t just a generic, off-the-shelf part. It’s a complete service designed to get your vehicle back to factory specifications. When you purchase this 1997 Grand Prix PCM, we use the VIN you provide to flash the module with the correct software calibration directly from GM’s database. This process ensures compatibility with your specific engine, transmission, and factory options. This unit is a direct replacement for part numbers 16218070 and 16217058 and fits a wide range of 1997 GM vehicles, including the Pontiac Grand Prix, Buick Century, Oldsmobile Cutlass Supreme, and Chevrolet Monte Carlo, among others. Please verify your vehicle in the fitment list to ensure compatibility.

The installation is typically straightforward for a DIY mechanic or any professional technician. Once installed, some vehicles may require a simple security relearn procedure (often called a CASE relearn) to sync the new module with your vehicle’s anti-theft system and crankshaft position sensor. This can often be done without special tools and instructions are widely available.

Frequently Asked Questions

Do I need to have this module programmed?

No, we handle the programming for you before shipment. You must provide us with your vehicle’s 17-digit VIN after purchase so we can load the correct GM software for your specific car.

Is this a plug-and-play part?

Yes, for the most part. Because it is programmed to your VIN, it will have the correct software. However, on many GM vehicles of this era, you may need to perform a security relearn or a crankshaft position sensor variation relearn (CASE relearn) after installation for the vehicle to start and run correctly.

Where is the PCM located on my 1997 Grand Prix?

On most 1997 GM W-body cars like the Grand Prix, the PCM is located inside the air filter box in the engine compartment. This protects it from the elements but makes it easy to access for replacement.

Will this fix my check engine light?

If the check engine light is caused by an internal failure of the original PCM, then yes, this replacement module will solve the problem. It is crucial to properly diagnose the vehicle first to ensure the PCM is the actual point of failure and not a faulty sensor or wiring issue.

How do I provide my VIN?

After you complete your purchase, you will receive instructions on how to send us your VIN. We cannot ship your part until we receive this information, as the programming is a critical part of the order.

MPN

16218070

Year
Conditions & Options

Programmed to your VIN GM: 16217058

Genuine OEM

Yes

Condition

Refurbished

PartNumber

590

Model

Grand Prix

Year

1997

Brand

GM

Manufacturer Part Number

,

Interchange part number

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