Air Fuel Ratio ( ARF) Controller & Monitor

To control all your sensors and your added HHO gas is how to get the best MPG gains with the added HHO GAS from our Bob Boyce® H2O original Cells

Narrow Band O2 sensors ( 2 to 4 wires) are in GM : Chevy, Cadillac, GMC, Buick, FORD, Chrysler : Dodge, Jeep - 1996 to 2009 cars and trucks. Toyota from 1987 to 1998

Wide Band O2 sensors (5 wires) are in Toyota 1999 to 2016 , Honda, Nissan, Mitsubishi, VW and GM : Chevy, Cadillac, GMC, Buick, FORD, Chrysler : Dodge, Jeep 2010 to 2016 cars and trucks.

If your not sure of your car to truck with narrow or wide band o2 sensor contact us

We send you all installation .pdf's and tuning info. It does take a good 4 to 6 hours to install these ARF Controllers. Every sensor gets one or two wires to all the O2 sensors (up to 4 on some cars) One CT and one AIT temp sensor, single wire. MAF or MAP voltage signal. We show you how to locate the correct sensor+ wire to splice into or "tee" into, in the case of the CT and AIT temps. MORE INFO on these sensors and locations.