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INSTALLATION AND USER GUIDE

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Summary of Contents for eFlexFuel eFlexPlus Sensor

  • Page 1 INSTALLATION AND USER GUIDE...
  • Page 2 StepOne Tech Ltd. Terms of use / Warranty: eflexfuel.com/us/terms-and-conditions-of-sale Your eFlexFuel is packed full of features. Make the most out of WARNING: Cancer and Reproductive Harm them by downloading the eFlexApp.
  • Page 3: Table Of Contents

    5.1. Introduction 2. Ethanol Sensor Installation 5.2. Cold Weather Use 2.1. Before You Begin 5.3. Maintaining a Vehicle Equipped with eFlexFuel 2.2. Parts Being Installed and Warnings 5.4. Filling Up and Fuel Consumption 2.3. Installation Step-by-Step 5.5. Engine Tuning and Modifications with eFlexFuel 5.6.
  • Page 4: Pre-Installation Checklist

    Locate the fuel line, MAF sensor, ground and power source and place components (e.g. spark plugs, ignition coils, HID lights, for the control unit. Plan how to wire the eFlexFuel system so that it's distributor etc.)! not placed next to any moving parts, excessive heat or high voltage components.
  • Page 5: Package Contents

    Cleaning rags The image may not show the contents of the product you ordered. eFlexFuel products are vehicle-specific product packages. I have verified the following before moving on to the next phase þ The engine is adequately maintained and in normal working condition with no engine warning lights showing.
  • Page 6: Ethanol Sensor Installation

    2. Ethanol Sensor Installation 2.1. Before You Begin 2.2. Parts Being Installed Fuel hose and hose clamps 3. Ethanol sensor › Open the fuel cap to release pressure from the fuel tank. 2. Fuel line quick connector 4. Ethanol sensor connector ›...
  • Page 7: Installation Step-By-Step

    3. Disconnect the original fuel line ◦ If the original fuel line connectors cannot be opened by hand, use the fuel line disconnect tool provided with the eFlexFuel kit. ◦ Use rags to protect the engine from fuel spills. 4. Prepare the new fuel line assembly with the ethanol sensor ◦...
  • Page 8: Wiring Harness Installation

    Ensure the car ignition is turned off. Locate the mass air flow (MAF) Sensor in air intake 2. Do not connect the eFlexFuel control unit to the wiring harness until 2. Disconnect the electrical connector from the MAF sensor. all other connections are completed.
  • Page 9: Ground And Power Wiring

    +12V power supply (e.g., battery to the fuel injectors or an unused bolt hole. (+) terminal or power rail in the fuse box). The eFlexFuel power wire must › Avoid placing the temperature sensor or its wiring near ignition system be continuously powered.
  • Page 10: Ethanol Sensor

    Before proceeding to the next phase, confirm the following: þ The eFlexFuel system is grounded properly, and the device has a continuous +12V supply. þ The temperature sensor is installed near the cylinder head or engine block.
  • Page 11: Finalizing The Installation

    Avoid installing the eFlexFuel system near high voltage components. components (e.g. spark plugs, ignition coils, HID lights, 2. Make sure that the eFlexFuel wiring harness is wired loose enough to distributor etc.)! compensate for engine movement and that it doesn't touch any moving or very hot components such as the exhaust manifold.
  • Page 12: First Start-Up

    E15. Please contact our customer service. I have verified the following before driving and filling up with ethanol: If the engine is running fine and the eFlexApp connects to the eFlexFuel system, you can now fill up with E85, gasoline or any blend of ethanol þ...
  • Page 13: Driving With The Eflexfuel System

    5.1. Introduction 5.2. Cold Weather Use eFlexFuel features a smart cold start that makes sure that your engine will eFlexFuel is a fully automatic E85 flex fuel conversion system that lets start even in the coldest conditions. However as ethanol fuel does not your engine to run on any mix of E85 ethanol and gasoline.
  • Page 14: Maintaining A Vehicle Equipped With Eflexfuel

    5.4. Filling Up and Fuel Consumption When driving with eFlexFuel and E85 ethanol fuel you can still follow the The eFlexFuel system enables your engine to run on E85, gas or any blend regular maintenance schedule recommended by the manufacturer of your of ethanol and gasoline.
  • Page 16 I’d also like to invite you to follow us and share your E85 experiences on Facebook (@eFlexFuelUSA) and Instagram (@eFlexFuel) - you might even win some free gear. Enjoy your drive! Tuomo Isokivijärvi...

This manual is also suitable for:

U-ef-plusU-ef-pro2

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