Restore Your Vehicle’s Reliability and Performance
Is your truck, van, or SUV suddenly stalling, hesitating, or refusing to start? A faulty Fuel System Control Module (FSCM) is one of the most common culprits behind these frustrating and unpredictable issues. This vital component regulates the power to your fuel pump, and when it fails, it can leave you stranded. This listing is for a genuine GM 20850927 Fuel System Control Module, professionally programmed to your vehicle’s specific VIN, providing a simple, effective, and permanent solution.
Common Symptoms & Your Solution
If you’re experiencing any of the following, a failing FSCM is the likely cause:
- Engine cranks but will not start
- Vehicle stalls unexpectedly while driving, especially under load
- Rough idling or hesitation during acceleration
- Reduced engine power and poor fuel economy
- Check Engine Light with codes such as P069E, P0230, or P0606
Instead of paying for expensive diagnostic time and programming fees at a dealership, this pre-flashed module is your direct-fit, plug-and-play answer. We take care of the complex programming so you can perform the repair with basic tools and get your vehicle back on the road quickly.
Features & Benefits
- ✔ VIN-Programmed for Your Vehicle: We flash the module with the latest GM software using your VIN. This ensures perfect compatibility and function right out of the box.
- ✔ No Dealer Visit Required: Save hundreds of dollars in programming fees and the hassle of scheduling a dealership appointment. This is a true DIY-friendly solution.
- ✔ Restores Proper Fuel Delivery: A new module ensures your fuel pump receives the correct voltage, restoring lost power, improving throttle response, and fixing stalling issues.
- ✔ Broad GM Compatibility: This module replaces multiple part numbers (20791901, 20827745, 20877116, 20850927) and fits a wide range of trucks, vans, and SUVs.
- ✔ This unit is backed by our one-year replacement warranty.
From the Mechanic’s Desk: Many of these original Fuel System Control Modules are mounted on the frame rail, where they are constantly exposed to water, salt, and road debris. This exposure leads to corrosion and internal electronic failure over time. When you install this replacement 20850927 Fuel System Control Module, I highly recommend applying a thin layer of dielectric grease to the connector pins. This simple step helps seal out moisture and prevent future corrosion, adding years to the life of the part and giving you lasting peace of mind.
Frequently Asked Questions
What does a Fuel System Control Module (FSCM) do?
The FSCM, also known as a fuel pump driver module, is a small computer that controls the speed of the fuel pump. Instead of running the pump at full speed all the time, the FSCM varies the voltage based on the engine’s demand for fuel. This improves efficiency and extends the life of the fuel pump.
Is programming really required for this part?
Yes, absolutely. A new, unprogrammed FSCM will not work when installed. It must be calibrated to your vehicle’s specific operating parameters using the VIN. We handle this critical step for you before shipping, making the installation process as simple as possible.
How do I provide my VIN number?
After you complete your purchase, simply send us a message with your 17-digit Vehicle Identification Number (VIN). We cannot ship your part until we receive this information, so please provide it promptly to avoid delays.
Where is this module located on my vehicle?
On most trucks and vans like the Express, Silverado, and Sierra, the FSCM is mounted on the driver’s side frame rail, typically above the spare tire. On other vehicles, it may be in the trunk or rear compartment. A quick search for your specific model will confirm the exact location.
Is this a used or a new part?
This is a high-quality, tested recycled OEM part that has been inspected for performance and reliability. We then program it with the newest software available from GM for your vehicle.
My old part has a different number, will this work?
Yes. This 20850927 Fuel System Control Module is a direct replacement for several other part numbers, including 20791901, 20827745, and 20877116. As long as your vehicle is listed in the compatibility chart, this module will function correctly once programmed to your VIN.