Many exciting technologies exist today for increasing the fuel efficiency of internal combustion engines. However, in order to get the gains from these technologies, the electronics of modern vehicles must be confronted and handled. We are a specialty site that does just that. We have studied the effect of fuel saving technologies on your vehicle's sensors and developed products to correct for these effects. By doing this, all of the mileage gains available from the fuel saving technology can be achieved.

In a nutshell, the problem we are trying to solve is a simple one. Any technology that is increasing the efficiency of combustion of your petroleum based fuel, will cause additional oxygen to appear in the exhaust. This additional oxygen is sensed by your oxygen sensors, and this information is forwarded to the vehicle's computer. The computer then thinks that the air/fuel mix is too lean, and then richens the mix incorrectly.

The solution is then equally simple. We just need to compensate for this factor of the additional oxygen in the exhaust. By doing this, we unlock all of the latent gains your particular fuel saving device has to offer. This is where the EFIE comes in. EFIE stands for Electronic Fuel Injection Enhancer. The purpose of the EFIE is to make the needed adjustments to the oxygen sensor's signal. For more information on oxygen sensors, EFIEs and how these relate to fuel mileage, please see the articles in the first section of our Documents Page.

Which EFIE Do I Need?

We now have quite a few EFIE products and it can sometimes be confusing to know which product is the best one for your vehicle.  Please read the article Which EFIE Do I Need? to help you get the correct product.