Flex Fuel Sensor

Optimize your engine’s tuning with our high-quality Flex Fuel Sensor. This sensor delivers real-time readings of ethanol content and fuel temperature, enabling your engine management system to dynamically adjust fuel and timing parameters for peak performance and safety. Essential for E85 and ethanol-blended fuel applications, this sensor ensures accurate fuel mixture data, overcoming the variability of pump-labeled E85 and similar fuels. Key Features Measures ethanol content (0–100%) and fuel temperature (-40°F to 257°F / -40°C to 125°C) Provides real-time output for dynamic ECU adjustment Available with: 6″ pigtail pre-wired, or Connector housing with crimp-on terminals/seals for custom harnesses Compact, corrosion-resistant design suitable for harsh environments Compatible with: MS3Pro MSPNP-Pro MSPNP Gen 2 MegaSquirt 2 and 3 What’s Included Flex Fuel Sensor Connection Option (choose one): 6″ pre-crimped pigtail Connector and pins for custom wiring