Sensor Adjusters/Enhancers

Almost all modern vehicles employ oxygen sensors to tell the vehicle's computer if the air/fuel mixture is too rich or too lean. The computer uses the information from the 02 sensor to determine if more or less fuel should be added to the mix in order to maintain the correct proportion.

Gas vehicle engines (as opposed to diesel engines) are designed to operate at an air/fuel ratio of 14.7 to 1. When these proportions are being supplied to the engine, a certain amount of oxygen will be detected in the exhaust by the 02 sensor, and this information is fed into the vehicle's computer. If more oxygen is sensed, the computer thinks the mixture is too lean (not enough fuel), and adds fuel to the mix. Likewise, if less oxygen is sensed, the computer thinks the mixture is too rich (too much fuel) and cuts back on the fuel fed to the engine.

There's a big problem with this scenario as soon as you start adding a system that increases the efficiency of the petroleum combustion.  There are many different systems that can do this, with HHO being the most popular. What happens is that for any given air/fuel ratio, burned more efficiently, the oxygen content in the exhaust will rise. The oxygen content rises as the fuel is burned more efficiently for a number of reasons. Chief amongst these are a) less fuel is being used to produce an equivalent amount of engine revolutions, and b) less oxygen is being consumed to create carbon monoxide in the exhaust. The bottom line is there is more oxygen in the exhaust as the fuel burning efficiency is increased.


Suitable for


EFIE MAX - Quad Sensor suitable for vehicles with 4 O2/Lamda sensors such as V6 and V8 Petrol Engines £135
EFIE MAX - Dual Sensor suitable for vehicles with 2 O2/Lamda sensors such as Petrol Engines upto 3 litres (Please check as this is just an example) £120
Volo FS2 HHO Edition EFIE Flasher £130
MAP/MAF Sensor Adjuster for older vehicles without Fuel Injection and diesel engines £130


MPG SYSTEMS UK LTD Company Reg. 7572388