Is Your GM Truck or SUV Stalling, Hesitating, or Refusing to Start?
A sudden loss of power, an engine that cranks but won’t start, or a dreaded “Reduced Engine Power” message on your dash are classic signs of a failing Fuel System Control Module (FSCM). This critical component regulates the voltage sent to your fuel pump, ensuring your engine gets the precise amount of fuel it needs. When it fails, it can leave you stranded and frustrated. This VIN-programmed GM Fuel System Control Module 20850927 is the definitive, hassle-free solution to get your vehicle back to factory-spec reliability.
Common Symptoms & Your Solution
If you’re experiencing any of the following issues, a faulty FSCM is the most likely culprit. This module is engineered to resolve these problems directly:
- Engine cranks but will not start
- Vehicle stalls unexpectedly while driving
- Hesitation or stumbling during acceleration
- “Service Stabilitrak” or “Reduced Engine Power” warnings
- Diagnostic Trouble Codes (DTCs) such as P069E, P0230, P0606, or U0109
Don’t waste time and money on guesswork. We take the complexity out of the repair by pre-programming this module to your vehicle’s specific VIN number. This means it arrives at your door ready for a true plug-and-play installation, with no need for an expensive trip to the dealership for programming.
Features & Real-World Benefits
- ✔ Plug-and-Play Installation: Arrives pre-programmed to your specific VIN. Simply install the module, and you’re ready to go—no dealer visit required.
- ✔ Restores Engine Performance: Eliminates dangerous stalling, hard starts, and poor acceleration by ensuring consistent and correct fuel pressure.
- ✔ Clears Critical Fault Codes: The correct solution for trouble codes like P069E (Fuel Pump Control Module Commanded On) and U0109 (Lost Communication with FSCM).
- ✔ Flashed with Latest GM Software: We load the most current and stable software from GM, addressing known issues and improving long-term durability.
- ✔ Broad GM Compatibility: A direct replacement for multiple part numbers, including 20791901, 20827745, 20877116, and the primary GM Fuel System Control Module 20850927.
- ✔ Guaranteed Performance: This unit is backed by our one-year replacement warranty.
From the Technician’s Bench: Why Location Matters
Many of these original Fuel System Control Modules were mounted directly to the vehicle’s frame rail, often near the spare tire. This location exposes them to a constant assault from water, road salt, and debris, leading to corrosion and internal electronic failure. When you install your new module, we highly recommend applying a thin layer of dielectric grease to the connector pins to provide an extra barrier against moisture intrusion. This simple step can significantly extend the life of the component and prevent future communication errors. Getting a pre-programmed GM Fuel System Control Module 20850927 from us ensures you’re starting with the latest software, giving you the best possible foundation for a lasting repair.
Frequently Asked Questions
How do I provide my VIN for programming?
It’s easy! Simply enter your 17-digit Vehicle Identification Number (VIN) in the notes section during checkout, or send us a message with your order number after you complete your purchase. We cannot ship the module until we receive this information.
Where is this module located on my vehicle?
On most trucks and SUVs like the Silverado, Tahoe, and Suburban, 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. Always verify the location for your specific model before beginning the installation.
Do I need any special tools to install this?
No special tools are required for programming, as we handle that for you. For installation, you will only need basic hand tools to unbolt the old module and secure the new one. It’s a very straightforward process for a DIY mechanic.
Will this fix my “Service Stabilitrak” warning light?
In many cases, yes. The FSCM communicates on the vehicle’s data network (CAN bus). When it fails, it can disrupt communication between other essential modules, often triggering seemingly unrelated warnings like “Service Stabilitrak” or ABS lights. Restoring proper FSCM function often resolves these phantom messages.
Is this a new or used part?
This is a high-quality, fully tested component that has been expertly programmed with the latest GM software to ensure it meets or exceeds original performance specifications. It is guaranteed to restore full function to your vehicle’s fuel system.