Fuel Saver

Installation Instructions

As we now have many different types of product, we have separated the instructions into separate documents. You will find the links below for your type of EFIE or other device, and the correct instructions.

However, despite the variety of devices we offer, the instructions are pretty similar for all of them. There are only 2 basic types of oxygen sensor. These are the narrow band and wide band types. Each of these 2 types requires a slightly different installation. Also, in the narrow band variety we have the Digital Narrow Series of devices. These install the same as any other narrow band type of EFIE, and the only difference is how you set the Digital type.


Digital Narrow Band Installation Instructions

Wide Band EFIE BasicSingle EFIE Basic

Wide Band Series Installation Instructions

Wide Band EFIE Basic

Installation Instructions for Analog EFIEs

Single EFIE DeluxeDual EFIE Deluxe

Notes for Analog Circuit Board Types

Wide Band EFIE BasicSingle EFIE Basic

OBD II Scanner Instructions

Wide Band EFIE BasicSingle EFIE Basic