Flex Sensor

Advantages of Installing a Flex Sensor in Car Tuning

1. Automatic Adaptation to Fuel Composition

The Flex Sensor (ethanol content sensor) allows the engine control unit (ECU) to read the percentage of ethanol in gasoline in real time. This is especially relevant when using blends such as E85 or unstable fuel from gas stations. The ECU automatically adjusts fuel injection, ignition, and other parameters without the need for constant recalibration.

2. Engine Protection

Without the Flex Sensor, the risk increases: a sudden change in fuel composition can lead to detonation or a lean mixture. Installing the sensor allows for precise control of fuel composition and avoids critical situations, increasing the reliability and lifespan of the engine.

3. Improved Performance 

When using ethanol, it is possible to safely increase boost levels and ignition timing—all thanks to data from the Flex Sensor. This achieves maximum power without compromising safety.

4. Flexibility in Fuel Use

With the Flex Sensor, you can refuel the car with any fuel from 95-octane gasoline to E85. The system adapts automatically, which is especially convenient on long trips or in regions with unstable fuel quality.

5. Compatibility with Modern Control Systems

Modern ECUs (Simos18, Bosch MED17, etc.) have built-in support for Flex Fuel, making integration easy and quick. Where control units lack support, we can integrate this into your ECU.

6. A Necessary Element for High-Power Projects

For engines with a power output of 400 hp and above, the use of a Flex Sensor becomes mandatory, especially when switching to ethanol. It ensures stability and safety under maximum loads.