PRL Motorsports 2016-2021 Honda Civic 1.5T Flex Fuel Ethanol Sensor Kit

Special order, usually ships in 2-3 weeks. However, if the manufacturer has this item in stock we can normally drop ship it directly to you within 3-5 business days. Contact us and we can get you an accurate ETA before placing an order.

PRL Motorsports 2016-2021 Honda Civic 1.5T Flex Fuel Ethanol Sensor Kit


  • Fits all 2016-2021 Civic 1.5T
  • Fits all variant models including Si, CVT, 6MT, RHD, International Models, etc.

Important Notes:

  • Now With Wifi Module To Wirelessly Analyze ethanol Content via Smart Device
  • Optional 0.5V - 4.5V Configurable Output For Use With Tuning Device/Data logger
  • Compatible With Both Hondata & KTuner
  • Catch Can Mounting Brackets Available From Cre Custom

Replacement Fuel Hoses:

  • PTFE Flex Fuel Line Assembly
  • Billet EFI Flex Fuel Union Fitting

Why Run Ethanol?

Due to rising gas prices and the push for alternative fuel sources, ethanol, derived primarily from corn, has become a common, cost-effective fuel choice. ethanol has now found its way into most modern gas stations and the community now understands its list of benefits in comparison to gasoline, such as the fact ethanol burns cleaner, cooler and is more resistant to detonation. Because of these characteristics, ethanol is a cheap alternative to expensive race fuels like race gas and/or methanol, especially with high(er) compression factory turbocharged vehicles.

E85 = 85% ethanol and 15% Gasoline whereas E30 = 30% ethanol and 70% Gasoline and so-on.

What is Flex Fuel?

In a nutshell, “flex-fuel” allows an internal combustion engine to flexibly utilize one or more different fuels (usually gasoline blended with either ethanol or methanol fuel), and both fuels are stored in the same common fuel tank. Flex-Fuel systems utilize an ethanol content analyzer to determine the amount of ethanol in a fuel system and a converter to send this reading to the vehicle's ECU to instantaneously adjust for varying fuel mixtures.

PRL Motorsports Plug ‘n Play Flex-Fuel Kit utilizes factory plugs/outputs under the hood for power and communication to the ECU, meaning no need for additional wiring, cutting, splicing or running wires through the firewall into the cabin! This kit supplies everything needed for a quick and easy installation. Please note that PRL Motorsports kit does NOT utilize an ethanol content gauge, as PRL Motorsports feel that this is unnecessary. Hondata and KTuner V1.2 both offer Bluetooth capabilities, while the KTuner V2 LCD screen can be used to display ethanol content if desired. All components are ethanol compliant!

Kit Includes:

  • Billet Aluminum Flex-Fuel Converter Case with Sealed & Potted Board (WiFi)
  • Genuine GM Continental ethanol Content Sensor
  • Plug 'N Play Braided Wiring Harness
  • Stainless Mounting Bracket
  • 3/8" to 1/4" EFI Billet Adapter Union
  • Gates Barricade High-Pressure Fuel Injection Hose
  • 1/4" EFI Quick Connect Fitting (OEM Line Side)
  • 3/8" EFI Quick Connect Fitting (PRL Kit Side)
  • Stainless Hardware

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