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Technical Resources

Electronic Fuel Injection Enhancers (EFIE)

Oxygen Sensors, Basic Information
Basic information about oxygen sensors and how they are used. What you need to know about O2 sensors if your are to be successful with an HHO system. Read this document first when learning about sensors and vehicle electronics
Types of Oxygen Sensors
Tells about the various types of oxygen sensors in use. Goes into more depth about how oxygen sensors are use. Finally gives resources for working out what type of sensors you have.
Wiring Diagrams
Resources for finding wiring diagrams for your vehicle.
Analog EFIE Circuit Boards Instructions

Resources for those seeking fuel economy

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