1998 Firebird Powertrain Control Module Programmed to Your VIN 9366314

Restore Peak Performance to Your GM Vehicle

If you’re dealing with a frustrating check engine light, poor fuel economy, erratic shifting, or a no-start condition in your 1998 Firebird or other GM vehicle, a failing Powertrain Control Module (PCM) is often the culprit. As the ‘brain’ of your vehicle, the PCM controls everything from fuel mixture and ignition timing to transmission shift points. When it fails, the symptoms can be confusing and widespread. This isn’t just an inconvenience; it’s a critical component for your car’s reliability and drivability.

With over 20 years of hands-on diagnostic experience, I’ve seen how a faulty PCM can sideline an otherwise perfectly good car. That’s why we offer this reliable replacement PCM, which takes the guesswork and high costs out of the repair. The biggest hurdle for most DIYers and even professional shops is the programming. We solve that for you. Simply provide your vehicle’s VIN during checkout, and we will program this module with the latest official GM software updates specifically for your car. It arrives at your door ready for a straightforward installation.

Is Your Vehicle Showing These Red Flags?

A failing PCM can manifest in many ways. If you’re experiencing any of the following, it’s a strong indicator that your engine computer needs attention:

• ✔ Persistent Check Engine Light (CEL) that won’t clear.
• ✔ Common Diagnostic Trouble Codes (DTCs) like P0601, P0602, or P0605.
• ✔ Unexplained drop in fuel mileage.
• ✔ Engine stalling, stumbling, or hesitating during acceleration.
• ✔ Harsh or erratic automatic transmission shifting.
• ✔ The vehicle won’t start, but the battery and starter are good.
• ✔ Failure to pass state emissions testing.

Your Straightforward Installation Guide

Replacing your 1998 Firebird Powertrain Control Module is a job most DIYers can handle. The key is the security relearn procedure, which sounds complex but is actually very simple. No special tools are required.

1. Safety First: Disconnect the negative terminal from your vehicle’s battery.
2. Locate the PCM: On most of these GM models, the PCM is located in the engine compartment, often inside the air filter box, or under the passenger-side dashboard.
3. Remove the Old Module: Carefully unplug the wiring harness connectors. They have locking tabs, so be gentle. Then, unbolt the module from its mounting bracket.
4. Install the New PCM: Mount the new module and securely plug in the wiring harnesses. You should hear a ‘click’ as they lock into place.
5. Reconnect the Battery: Re-attach the negative battery terminal.
6. Perform Security Relearn (CRITICAL STEP): Do not try to start the engine yet. Insert the key and turn it to the ‘ON’ position (don’t crank). The security light may be flashing or solid. Leave the key ‘ON’ for 10-12 minutes, or until the security light turns off. Then, turn the key to ‘OFF’ for 10 seconds. Repeat this cycle two more times for a total of three cycles. The car is now ready to start.

Verified Vehicle Compatibility

This module is a direct replacement for service numbers 09356741, 16236757, 9357034, 9357440, and 9366314. After VIN programming, it is guaranteed to fit and function correctly in the following vehicles:

• ✔ 1999 Alero (3.4L)
• ✔ 1998 Achieva (3.1L)
• ✔ 1998 Bonneville
• ✔ 1998 Camaro (3.8L)
• ✔ 1998 Century (3.1L)
• ✔ 1998-1999 Cutlass
• ✔ 1998 Eighty Eight
• ✔ 1998 Firebird (3.8L)
• ✔ 1998-1999 Grand Am (3.1L, 3.4L)
• ✔ 1998 Grand Prix
• ✔ 1998 Intrigue
• ✔ 1998 LeSabre (3.8L)
• ✔ 1998 Lumina Car
• ✔ 1998 Malibu (3.1L)
• ✔ 1998 Monte Carlo
• ✔ 1998 Park Avenue (3.8L)
• ✔ 1998 Regal
• ✔ 1998 Riviera (3.8L)
• ✔ 1998 Silhouette
• ✔ 1998 Skylark (3.1L)
• ✔ 1998 Trans Sport
• ✔ 1998 Venture (3.4L)

Frequently Asked Questions About This PCM