Restore Peak Performance to Your 1997 GM Vehicle
Is your Camaro, Firebird, or Grand Prix suffering from frustrating drivability issues? A persistent Check Engine Light, unexplained stalling, rough idling, or erratic transmission shifting can often be traced back to a single, critical component: a failing Powertrain Control Module (PCM). As a technician with over 20 years of experience, I’ve seen how a faulty PCM can turn a reliable car into a constant headache. This isn’t just an inconvenience; it affects your vehicle’s performance, fuel economy, and emissions. This replacement PCM is the reliable, straightforward solution you need to get your car running right again.
This module, part number 16227797, is the central computer for your vehicle’s engine and transmission. We take the guesswork and hassle out of the repair by programming it specifically for your car using your Vehicle Identification Number (VIN). This ensures it has the latest GM software updates and communicates perfectly with all other systems in your vehicle. When you install our 1997 Camaro PCM, you’re not just replacing a part; you’re restoring the precise, factory-calibrated control your engine needs to operate efficiently and reliably.
A Technician’s Notebook: The Common Fate of ’90s PCMs
In the shop, we see a lot of vehicles from this era, especially those with the robust GM 3.8L V6. A common call is for a no-start or intermittent stalling that no one can seem to pin down. After checking fuel and spark, my attention often turns to the PCM. The circuit boards in these modules, after decades of heat cycles and vibrations, can develop microscopic cracks in solder joints or failing capacitors. This leads to intermittent connections that cause bizarre symptoms—one day the car runs fine, the next it won’t start. This is why a simple part swap with a quality, correctly programmed module is often the definitive fix.
Common Signs of a Failing PCM
- ✔ Check Engine Light is illuminated with codes like P0601 (Internal Control Module Memory Check Sum Error) or P0605 (ROM Error).
- ✔ The engine cranks but refuses to start.
- ✔ Unexplained stalling, especially when the engine is warm.
- ✔ Noticeable decrease in fuel efficiency.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Engine misfires or runs rough, even after replacing spark plugs and wires.
- ✔ Failure to pass an emissions inspection.
A Straightforward Guide to Installation
- ✔ Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- ✔ Locate the PCM: On most 1997 GM models like the Camaro and Firebird, the PCM is located under the hood on the passenger side fender well.
- ✔ Disconnect the Harnesses: Carefully unplug the electrical connectors from the old module. There are typically release tabs that need to be pressed. Avoid pulling on the wires themselves.
- ✔ Remove the Old Module: Unbolt the PCM from its mounting bracket. Keep the hardware as you will need it for the new module.
- ✔ Install the New PCM: Mount your new, pre-programmed 1997 Camaro PCM onto the bracket and securely tighten the bolts.
- ✔ Reconnect Everything: Plug the wiring harnesses firmly into the new module until they click into place. Reconnect the negative battery terminal.
- ✔ Final Step: Some vehicles may require a security relearn procedure (VATS/Pass-Key), which typically involves turning the key to the ‘ON’ position for 10-15 minutes. Consult your vehicle’s service information for specific steps.
Verified Vehicle Compatibility
This module is a direct-fit replacement for the following 1997 vehicles equipped with the specified engine. It is compatible with original part numbers 16227797 and 19109047.
- ✔ 1997 Bonneville: With 3.8L (6-231) Supercharged engine
- ✔ 1997 Camaro: With 3.8L (6-231) engine
- ✔ 1997 Eighty Eight: With 3.8L (6-231) Supercharged engine
- ✔ 1997 Firebird: With 3.8L (6-231) engine
- ✔ 1997 Grand Prix: With 3.8L (6-231) Supercharged engine
- ✔ 1997 Lumina Car: With 3.4L (6-207) engine
- ✔ 1997 Monte Carlo: With 3.4L (6-207) engine
- ✔ 1997 Park Avenue: With 3.8L (6-231) engine
- ✔ 1997 Regal: With 3.8L (6-231) Supercharged engine
- ✔ 1997 Riviera: With 3.8L (6-231) engine
Frequently Asked Questions
Frequently Asked Questions
How does the VIN programming work?
After you place your order, you will need to provide us with your vehicle’s 17-digit VIN. Our technicians use this number to load the exact, factory-correct software and calibrations for your specific vehicle, ensuring perfect compatibility and performance right out of the box.
Is this a plug-and-play part?
Yes, because we program it to your VIN before shipping, it is ready for installation. In some cases, a simple security relearn procedure may be required, which does not need special tools and can be done in your driveway.
Will this fix my car’s VATS or Pass-Key security issue?
While the PCM is part of the security system, this replacement will not bypass it. The programming ensures it works correctly with your existing security system. If your issue is a bad key or ignition cylinder, those will still need to be addressed separately.
Do I need to send my old PCM back?
No core charge is required for this part. You can keep or responsibly dispose of your old module.
Is this compatible with both supercharged and non-supercharged 3.8L engines?
Yes, but the programming is different. That is why providing your VIN is critical. We will flash the correct software based on whether your vehicle is a supercharged model (like a Bonneville SSEi or Grand Prix GTP) or a naturally aspirated model (like a Camaro or Firebird).