Restore Your Vehicle’s Power and Reliability
Is your GM truck, SUV, or van suffering from frustrating and unpredictable fuel issues? Stalling at intersections, hesitating under acceleration, or a complete no-start condition can leave you stranded and questioning your vehicle’s dependability. These are classic signs of a failing Fuel System Control Module (FSCM). This critical component regulates the voltage sent to your fuel pump, and when it falters, it starves your engine of the fuel it needs to run properly. Get back on the road with confidence with this direct-replacement, VIN-programmed 20791901 Fuel System Control Module.
Common Symptoms & Your Solution
A faulty FSCM can trigger a range of issues that are often misdiagnosed. If you’re experiencing any of the following, this module is the definitive solution:
- Check Engine Light: Often with diagnostic trouble codes (DTCs) like P069E, P0230, P0606, or U0109.
- Stalling or Engine Shutdown: The engine may cut out unexpectedly while driving or idling.
- No-Start Condition: The engine cranks but won’t fire up due to a lack of fuel pressure.
- Poor Engine Performance: Noticeable hesitation, sputtering, or a lack of power during acceleration.
- Erratic Fuel Gauge Readings: The fuel gauge may provide inaccurate information or fluctuate wildly.
Don’t waste time and money chasing the wrong parts. This module is the core of your vehicle’s fuel delivery system, and replacing it with our pre-programmed unit resolves these issues at the source.
Features & Benefits
- ✔ Plug & Play Installation: This module arrives fully programmed to your vehicle’s specific VIN. No expensive trips to the dealership for flashing or calibration are required.
- ✔ Updated GM Software: We flash each unit with the latest, most stable software from General Motors, ensuring optimal performance and longevity.
- ✔ Guaranteed Compatibility: By programming to your VIN, we ensure this module communicates perfectly with your vehicle’s other computers, like the ECM and BCM.
- ✔ Restores Performance: Get back the crisp throttle response and steady fuel delivery your engine was designed for.
- ✔ Direct-Fit Replacement: Engineered to match the original factory part for a perfect fit and hassle-free installation. This unit directly replaces part numbers 20791901, 20827745, 20877116, and 20850927.
- ✔ Peace of Mind: This unit is backed by our one-year replacement warranty.
From the Technician’s Bench
As a mechanic with over 20 years of experience, I’ve seen hundreds of these GM trucks and SUVs come into the shop with fuel delivery gremlins. The FSCM is often mounted on the frame rail, where it’s exposed to water, salt, and road debris. This leads to corrosion and internal failure over time. The biggest headache for DIYers and even professional shops used to be getting a new module programmed. Your vehicle is a brick until it’s done. Our service takes that entire problem off the table. We handle the complex programming so you can perform a simple, straightforward installation and get your vehicle running reliably in your own driveway.
Frequently Asked Questions
How does the VIN programming process work?
After you complete your purchase, simply send us your 17-digit Vehicle Identification Number (VIN). Our technicians will use professional GM-licensed equipment to load your vehicle’s exact software and calibration files onto the module before it ships. This makes it ready for installation right out of the box.
Where is this module located on my vehicle?
On most trucks and SUVs like the Silverado, Sierra, Tahoe, and Yukon, the FSCM is mounted on the driver’s side frame rail, typically above the spare tire. On other vehicles like the Acadia or Traverse, it may be on a rear crossmember. Always consult a service manual for your specific model to confirm the location.
Do I need any special tools for installation?
No special tools are required. Basic hand tools, such as a socket set, are all that’s typically needed to unbolt the old module and install the new one. The most important step is to disconnect the vehicle’s battery before you begin.
Is this part compatible with my vehicle?
This 20791901 Fuel System Control Module fits a very wide range of 2010-2012 GM vehicles. Please review the detailed fitment list on this page. Providing your VIN for programming is the best way to guarantee perfect compatibility.
What happens if I install it without programming?
An unprogrammed module will not work. The module must be able to communicate with your vehicle’s other computers using the correct software. Our pre-programming service is essential and eliminates this problem for you.