Is Your Truck or Van Running Rough? Get Back on the Road with Confidence.
There’s nothing more frustrating than a vehicle you can’t depend on. If you’re dealing with a persistent check engine light, erratic engine behavior, poor fuel mileage, or a no-start condition, a failing Powertrain Control Module (PCM) is often the culprit. This isn’t just an inconvenience; it’s a problem that affects your daily work and your peace of mind. This VIN-programmed engine computer is the straightforward, reliable solution to get your GM truck, van, or SUV running like it should again.
Common Symptoms & Your Solution
A faulty PCM can cause a wide range of confusing issues. You might be experiencing one or more of the following:
- Check Engine Light (CEL) with communication codes (U-codes) or false sensor codes.
- Engine Stalling or Misfiring: The engine may run rough, hesitate on acceleration, or die unexpectedly.
- Harsh or Failed Shifting: Your transmission may shift erratically or not at all.
- No-Start Condition: The engine cranks but won’t start, often due to a lack of fuel injector or ignition coil command.
- Drastically Reduced Fuel Economy: The engine runs inefficiently, costing you more at the pump.
This unit directly replaces a faulty original, solving these issues at their source. We take a quality, tested OEM computer and program it with the latest GM software updates using your vehicle’s specific VIN. This ensures perfect compatibility and restores the original performance and reliability you depend on. For many owners of a 1998 S10 PCM or similar GM vehicle, this is the most effective and efficient repair.
Features & Benefits
- âś” VIN-Programmed for Your Vehicle: Arrives ready for installation, programmed specifically to your truck or van. This eliminates the need for expensive programming at a dealership.
- âś” Flashed with Latest GM Updates: We load the most current factory software, which can improve performance, shifting, and fuel efficiency beyond the original calibration.
- âś” Cost-Effective OEM Part: You get the reliability and perfect fit of a genuine factory component without the high cost of a new-from-dealer part.
- âś” Broad Compatibility: This single unit is a direct replacement for multiple part numbers (including 09355699, 16266645, and 09366810), covering dozens of popular GM models.
- âś” Restore Peak Performance: A properly functioning computer is critical for engine efficiency, power, and smooth transmission operation. Get your vehicle back to its full potential.
- âś” Warranty Included: This unit is backed by our one-year replacement warranty.
A Pro-Tip from a Veteran Tech
Before you condemn your computer, always perform a full battery and charging system test. A weak battery or failing alternator can cause low voltage issues that mimic PCM failure. Also, take a moment to check the main engine and chassis ground connections. On these 90s GM trucks, a corroded or loose ground wire is a common cause of bizarre electrical problems. A few minutes of inspection can save you a lot of headaches. A good foundation is key to a successful repair, and that starts with a solid electrical system. When you’re certain the computer is the issue, a properly programmed 1998 S10 PCM like this one is the definitive fix.
Frequently Asked Questions
How do I provide my VIN?
After you complete your purchase, you will need to send us a message with your 17-digit Vehicle Identification Number (VIN). We cannot program and ship your computer without it.
Will I need to do anything else after installing this PCM?
In most cases, you will need to perform a security relearn procedure, also known as a Passlock or VATS relearn. This is a simple process that can be done without special tools and typically takes 10-30 minutes. Instructions are widely available online for your specific model. Some vehicles may also require a Crankshaft Position Sensor (CASE) relearn, which requires a compatible scan tool.
How can I be sure this is the right part for my vehicle?
Please match one of the part numbers in the description (e.g., 09355699, 16266645, 09366810) to the number on your current computer’s sticker. You can also use the detailed fitment list provided to confirm your make, model, and year. When in doubt, send us a message with your VIN and we can verify compatibility for you.
Is this a new or used computer?
This is a high-quality, used OEM computer that has been sourced from a salvaged vehicle. Each unit is tested, cleaned, and then professionally programmed for its next service life.
What does the warranty cover?
This unit is backed by our one-year replacement warranty. This covers the hardware against failure for one year from the date of purchase. If the unit fails, we will provide a replacement.