O2 Oxygen Sensor Extender, HHO, Hydrogen, EFIE

What is a O2 Extender and why they work?

In most vehicles larger and more consistent MPG gains can be achieved by using a O2 extenders in conjunction with your Hydrogen Generator and Delivery System. In fact these inexpensive devices will work even if aren’t running these systems.

Contrary to it's name this sensor actually measures the air/fuel ratio not the amount of

O2. The sensor is a catalytic converter with a thermocouple so the sensor generates voltage based on the heat from the conversion of unburned fuel and available Oxygen O2 to CO2 (an exothermic reaction). Since Hydrogen extends the lean operating range less fuel and less oxygen are available to be converted by the O2 sensor to heat resulting in a lower voltage output.

These adaptors adjust the front O2 sensors to the top of the exhaust manifold where there is more Fuel and O2 are located (Remember being told in grade school in case of a fire to crawl, because the vapors rise. We are just taking advantage of this principle.)

Note: MPG gains can be lost by adding to much hydrogen into an ICE. You will still need to have a voltage output of about 400-600 mV at idle (for most vehicles) with O2 extenders installed.

Running vehicle with more Hydrogen gas and trying to adjust with an (EFIE, O2, MAP or MAF) devices usually will not work because Hydrogen also increases flame speed meaning the more Hydrogen you add the more fuel is burned in the compression stroke (before reaching TDC) not in the power stroke.

Hydrogen Tuning is the only reliable way solve the timing problem.

What is a O2 Extender and why they work?

Pair of O2 Extender