Restore Your Regal’s Performance and Reliability
Is your 2011-2012 Buick Regal suddenly stalling, hesitating during acceleration, or refusing to start? Before you condemn the fuel pump, the real culprit is often the Fuel System Control Module (FSCM). As a technician with over two decades of experience, I’ve seen this exact scenario play out countless times. This module is the brain of your fuel system, precisely controlling the fuel pump’s voltage to deliver the right amount of fuel at the right time. When it fails, it starves your engine, leading to frustrating and unpredictable performance issues.
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take the hassle and expense out of the repair by pre-programming this 2011-2012 Regal Fuel Module directly to your vehicle’s VIN. This means it arrives at your door with the latest GM software updates already installed, eliminating the need for a costly trip to the dealership for programming. You get a reliable fix that restores factory performance and fuel efficiency, all with a simple plug-and-play installation.
A Technician’s Notebook
I recently worked on a 2012 Regal that had the classic symptoms: intermittent stalling at red lights and a P069E code stored in the computer. The owner had already replaced the fuel pump, but the problem persisted. After a quick check of the FSCM’s data stream, it was clear the module was commanding erratic voltages. These modules are often exposed to harsh conditions, and their internal electronics can fail over time. We installed one of our VIN-programmed modules, and the car ran perfectly. It’s a textbook example of why proper diagnosis is key and how this part can save you from replacing components you don’t need.
Is Your Regal Showing These Signs?
A failing FSCM can manifest in several ways. If you’re experiencing any of the following, this module is the likely solution:
- âś” Engine stalls unexpectedly, especially at idle or low speeds.
- âś” Difficulty starting the engine or a complete no-start condition.
- âś” Noticeable hesitation or stumbling during acceleration.
- âś” Reduced engine power and poor fuel economy.
- âś” An illuminated Check Engine Light with codes like P069E, U0109, or P0230.
Your Straightforward Installation Guide
Installing your new 2011-2012 Regal Fuel Module is a manageable job for a confident DIYer. For the Regal, the module is typically located inside the trunk, behind the trim panel in the left rear quarter panel area.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Access the Module: Open the trunk and remove any clips or fasteners holding the left-side interior trim panel in place. Carefully pull the panel back to expose the FSCM.
- Disconnect and Remove: Unplug the electrical connector(s) from the old module. Then, remove the nuts or bolts securing it to the vehicle’s body.
- Install the New Module: Mount your new, pre-programmed FSCM in the same location and secure it with the original hardware.
- Reconnect and Finalize: Plug the electrical connector(s) firmly into the new module. Reinstall the interior trim panel and reconnect the negative battery terminal.
- Final Check: Start the vehicle. It may take a few extra cranks to prime the fuel system. Let it run for a few minutes and check for any warning lights.
Verified Vehicle Compatibility
This Fuel System Control Module is a direct-fit replacement for 2011-2012 Buick Regal models. It is also compatible with a wide range of other GM vehicles that use part numbers 20827745, 20791901, 20877116, or 20850927. While this part fits many models like the Cadillac CTS, GMC Sierra, and Chevy Tahoe, please ensure your vehicle is on the list below and that the part number matches your original module for guaranteed compatibility.
Frequently Asked Questions
Frequently Asked Questions
Do I need to program this module?
No. This is the biggest benefit of our service. We program the module to your specific VIN before we ship it. It arrives ready for a plug-and-play installation, saving you a trip to the dealer and hundreds in programming fees.
What is a VIN and why do you need it?
The VIN (Vehicle Identification Number) is a unique 17-digit code for your car. It contains specific information about your vehicle’s options and configuration. We use it to load the exact factory software and calibrations your car needs to run correctly.
Where is this module located on my 2011 Regal?
On the 2011-2012 Buick Regal, the Fuel System Control Module is typically found inside the vehicle, in the left rear quarter interior. You will need to remove the trunk trim panel on the driver’s side to access it.
Is this part compatible with other part numbers?
Yes, this module is a direct replacement for several part numbers, including 20791901, 20877116, and 20850927. If your original module has any of these numbers, this part will work for you.
What happens if I don’t replace a failing FSCM?
Ignoring a failing FSCM can lead to more severe issues. You may experience frequent stalling, which is a safety hazard in traffic. It can also lead to a no-start condition, leaving you stranded, and potentially cause damage to other fuel system components over time.