Is Your GM Stalling or Refusing to Start? The Fix is Here.
Are you dealing with a GM truck or SUV that’s suddenly stalling, struggling to start, or flashing a ‘Service Fuel System’ warning on your dash? These frustrating and unpredictable symptoms often point directly to a failing Fuel System Control Module (FSCM). Don’t let a faulty module leave you stranded. Get back on the road with confidence using our fully programmed, ready-to-install replacement FSCM.
Common Symptoms & Your Direct-Fit Solution
A failing FSCM can cause a range of issues that mimic a bad fuel pump. Before you spend hundreds on a pump replacement, check if your vehicle is exhibiting these classic signs of a faulty module:
- Engine cranks but will not start
- Sudden stalling while driving, especially under load
- Hesitation or sputtering during acceleration
- Reduced engine power and poor performance
- Check Engine Light with codes like P069E, P0230, or P0606
This Programmed 20791901 Fuel System Control Module is the definitive solution. We take the guesswork and high cost out of the repair by pre-flashing the unit with the latest GM software, specifically matched to your vehicle’s VIN. This means no expensive trips to the dealership for programmingโit’s a true plug-and-play fix.
Features & Benefits
- โ VIN-Programmed For You: Arrives ready for installation, completely eliminating the need for dealership programming tools or additional costs.
- โ Latest GM Software Updates: We flash each module with the most current software from General Motors, ensuring optimal fuel delivery, efficiency, and system stability.
- โ Direct-Fit Replacement: Engineered to be a perfect match for the original module, guaranteeing a hassle-free installation with factory mounting points and connectors.
- โ Solves Common Fuel Issues: Directly addresses the root cause of many no-start, stalling, and poor performance problems on a wide range of GM vehicles.
- โ Broad Compatibility: Replaces multiple original part numbers, including 20791901, 20827745, 20877116, and 20850927, for a perfect fit on your vehicle.
- โ This unit is backed by our one-year replacement warranty.
Expert Insight from a 20-Year Technician
I’ve replaced hundreds of these FSCMs. The original modules on many GM trucks and SUVs are mounted on the frame rail, exposed to road salt, water, and debris. This leads to corrosion on the circuit board and connector pins, causing intermittent electrical faults that are a nightmare to diagnose. Our Programmed 20791901 Fuel System Control Module, flashed with the latest software, not only fixes the immediate problem but also includes updated logic to better manage the fuel system, which can help prevent premature fuel pump failure and ensure long-term reliability.
Frequently Asked Questions
Do I need to get this module programmed by a dealer?
Absolutely not. The main benefit of our service is that we program the module to your vehicle’s specific VIN before we ship it. This makes it a true plug-and-play part, saving you the time, hassle, and high cost of a dealership visit.
Where is the Fuel System Control Module located on my vehicle?
On most GM trucks and full-size SUVs (like the Silverado, Sierra, Tahoe, Yukon), it’s typically mounted on the driver’s side frame rail, near the spare tire. On crossovers and sedans (like the Acadia, CTS, LaCrosse), it’s often located in the rear of the vehicle, inside a trunk compartment or near the rear crossmember. Always consult a service manual for your specific model to confirm the location.
What information do you need from me after I order?
After you complete your purchase, you will need to provide us with your vehicle’s 17-digit Vehicle Identification Number (VIN). We cannot ship your part until we receive the VIN, as it is required for the programming process.
Is this module compatible with other part numbers?
Yes. This module is a direct replacement for several original equipment part numbers, including 20791901, 20827745, 20877116, and 20850927. If your old module has any of these numbers, this part will work for your vehicle.
Why is a programmed module so important?
The FSCM must communicate with your vehicle’s main computer (ECU/PCM) to function. An unprogrammed, off-the-shelf module will not be recognized by the vehicle’s security and engine management systems, resulting in a no-start condition. Our pre-programming service for the Programmed 20791901 Fuel System Control Module ensures seamless integration and correct operation from the moment you install it.