What are the additional HHO electronic options for? Why buy a DEFIE?
A side effect of any HHO unit is that the total burn of the fuel reduces the temperature of the exhaust and leaves some unburned oxygen in the exhaust gases. On modern vehicles the electronics suite, which controls the fuel flow, can mistakenly read the excess oxygen content of the exhaust gases as too lean a mixture and increase the fuel flow in order to correct this lean mixture signal. The signals from the 02 sensors and map sensors are adjusted by the electronics supplied – Digital Electric Fuel Injector Enhancers (DEFIE’s) – with the unit in order to bring these values back within the correct range. On modern diesels which have 02 sensors and map sensors the hho cell plus one 02 sensor DEFIE and one map DEFIE will allow the engine to take full advantage of the higher-octane fuel, faster burning fuel mixture afforded by the induction of hho into the air box. On certain vehicles, a single O2 sensor DEFIE will suffice; on older vehicles there are no additional electrics required. Thi
