Is Your Corvette Running Rough, Stalling, or Refusing to Start?
As a technician with over two decades of experience under the hood, I’ve seen my fair share of C5 Corvettes come into the shop with puzzling issues. The owner will describe symptoms like intermittent stalling at a stoplight, a persistent Check Engine Light that no amount of part-swapping will fix, hard starting, or a complete no-start condition. Often, the culprit isn’t a bad sensor or a fuel pump; it’s the very brain of the vehicle’s operation: the Powertrain Control Module (PCM).
The PCM in your 1999-2000 Corvette is the master controller for the legendary LS1 engine and the transmission. It processes data from dozens of sensors to make thousands of calculations every second, precisely managing fuel injection, ignition timing, and transmission shift points. When it starts to fail, the symptoms can be widespread and frustratingly inconsistent.
The Real-World Cause of PCM Failure
These specific PCMs, often referred to by their service number 09354896, are generally robust. However, after 20+ years of service, they are susceptible to failure from two main enemies: heat and vibration. Located in the right-hand side of the engine compartment, they endure countless heat cycles. Over time, this thermal stress can cause microscopic cracks in solder joints and the eventual breakdown of internal electronic components like capacitors and driver circuits. I’ve personally diagnosed failed injector drivers on these units, which can cause a specific cylinder to misfire or not fire at all.
Expert Pro Tip: Check Your Grounds First!
Before you condemn your PCM, do yourself a favor and check the main engine-to-chassis ground straps. On these GM platforms, a corroded or loose ground can cause voltage issues that mimic a failing PCM. I’ve seen customers spend hundreds on unnecessary parts when all they needed was to clean and tighten a $5 ground wire. A quick check with a multimeter can save you a massive headache.
The Guaranteed Solution: A VIN-Programmed PCM
This isn’t just a replacement part; it’s a complete solution. We are offering a genuine GM-spec Powertrain Control Module that replaces part numbers 09354896, 9354896, and 19109040. The most critical service we provide is programming it specifically for YOUR vehicle before it ever leaves our facility.
Here’s what that means for you:
- ✔ No Dealer Trip Needed: You provide us with your vehicle’s 17-digit VIN during checkout. We use that information to load the correct, factory-authorized software and calibrations directly onto the module.
- ✔ Latest GM Software Updates: Your new PCM will be flashed with the most recent software from General Motors. These updates often contain important fixes for drivability, emissions, and performance issues that were discovered after your car left the factory.
- ✔ Plug-and-Play Ready: Because we program it, the module is ready for installation right out of the box. The only step you’ll need to perform is a simple security relearn procedure (which takes about 30 minutes and requires no special tools) to sync the PCM with your car’s anti-theft system. This avoids a costly and inconvenient trip to the dealership.
Guaranteed Fitment for Your GM Vehicle
While this listing is focused on the 1999-2000 Corvette, this versatile PCM is the correct service replacement for a wide range of popular GM cars and trucks. The internal hardware is the same, but the software we load makes it specific to your application. This module is guaranteed to fit and function correctly in the following vehicles:
- ✔ 1999-2000 Corvette: (RH engine compartment)
- ✔ 1999-2002 Camaro (5.7L): (Behind RH strut tower)
- ✔ 1999-2002 Firebird (5.7L): (Behind RH strut tower)
- ✔ 1999-2000 Silverado/Sierra 1500 & 2500: (LH front under battery)
- ✔ 2000 Tahoe/Suburban 1500 & 2500: (LH front under battery)
- ✔ 2000 Yukon/Yukon XL 1500 & 2500: (LH front under battery)
Stop chasing phantom issues and restore the precision performance of your vehicle. This VIN-programmed PCM is the most reliable and straightforward way to fix complex electronic issues and get your car or truck running perfectly again.