For years, adding an E85 flex fuel sensor to your vehicle meant dealing with a major headache: cutting fuel lines, sourcing expensive adapters, and building "bypass" loops to avoid fuel flow restrictions.

If you’re running a GM ECU and want to unlock the power of ethanol without the plumbing nightmare, the Advanced Fuel Dynamics (AFD) E-Sense and FlexLink system is the breakthrough you’ve been waiting for.

1. Zero Restriction, Zero Adapters

The biggest flaw in traditional OEM sensors is the tiny internal diameter. They act like a "choke point" in your fuel system. The E-Sense changes the game by being a truly restrictionless sensor.

Because it is designed to handle high-volume flow, the E-Sense can be plugged directly in-line with your stock fuel lines. There is no need for extra plumbing, Y-blocks, or bulky hardware. It provides a seamless, factory-clean install that satisfies both the DIY enthusiast and the professional tuner.

2. Built for the GM ECU

If you are tuning a GM-based platform, integration is key. The E-Sense is designed to communicate perfectly with your factory ECU. This allows your tuner to set up "True Flex Fuel" tables, where the computer automatically adjusts timing and fueling based on the exact percentage of ethanol in the lines. No more switching maps at the gas station—just fill up and go.

3. The FlexLink: Your Wireless Ethanol Gauge

Gone are the days of cutting into your dashboard to mount a clunky, outdated digital gauge. The FlexLink system brings your fuel data into the 21st century.

By connecting to the sensor, FlexLink provides a wireless gauge directly on your smartphone.

• Real-time Monitoring: See your ethanol percentage instantly via the app.

• Fuel Temperature: Keep an eye on fuel temps to ensure peak performance.

• Clean Interior: Keep your cabin looking stock while having more data than ever before at your fingertips.

4. Why This Matters for Tuners and Owners

For tuners, the E-Sense provides a more reliable signal and better fuel pressure consistency because there is no turbulence from restrictive adapters.

For owners, it saves time and money on installation. It’s the ultimate "peace of mind" modification: you get the performance of E85 with the convenience of a modern, wireless interface.

Final Verdict

The AFD E-Sense and FlexLink system is the most streamlined flex fuel solution on the market. It’s faster to install, safer for your fuel flow, and smarter for your data tracking.