HHO kit and EFEI Sensors

With ANY HHO/HOD kit if your motor is 1.8 litre or over, you need a additional sensor. Why? It is due to the fact that larger motors require more hydrogen gas to displace the critical angle for the piston and cause the spark or combustion to occur at an optimum point, igniting all gasses in the chamber of the engine cylinder and burning all fuel components efficiently. Simply put, a bigger motor needs more hydrogen to achieve some gas savings and fuel economy relative to the size of the vehicle. That is also right, hydrogen increases motor efficiency from the 30 or 35% ANY car has, upwards of at least 80%. This is why when we add a hydrogen fuel supplement, it increases fuel economy. A sensor works in conjunction with the ECU of the vehicle and aids the computer with the hydrogen modification applied to it’s fuel system.

A HHO kit is tuned to provide the right amount of hydrogen gas

You tune the water solution in your HHO kit to match the motor size of the vehicle. The way this is done is through the power curve associated with the vehicle. A 1.5 litre motor like the Toyota echo has a specific power curve and 5mls of sodium hydroxy added to a litre of distilled water is all the echo takes. Different motor sizes take different levels of hydroxy. A 3 litre motor would take 15mls of sodium hydroxy per gallon. A 2.2 litre might take 6 mls of hydroxy per gallon. A 5 litre motor would take 27.5 mls of hydroxy per gallon. This is STANDARD regardless whether you have either a HHO or HOD kit. It does not matter whether the kit is gravity fed or hydrogen on demand.

How does HHO interact with your motor

A hydrogen fuel cell will cause your motor to run efficient but in a lean configuration. You could also achieve the same thing with straight gas. The problem is with straight gas, optimum efficiency and optimum fuel burn efficiency rates, this causes the motor to run hot. VERY hot. This is not good for the motor and detrimental to the longevity of it. By adding hydrogen, super heated steam cools the motor when the steam expands, or upon it’s expansion, and this SOLVES the problem of a motor overheating and longevity problems by running it in a lean or efficient configuration.

How does a HHO kit interact with the exhaust system

The problem is with the higher levels of hydrogen gas required by bigger motors is the emissions coming from the vehicle contain way less noticeable gasses as far as the oxygen sensors are concerned. This is THEE problem when it comes to bigger motors of higher litre output. Simply put, the more hydrogen gas a HOD system puts out the less the emission gasses are in the exhaust emissions. Oxygen sensors detect exhaust emission levels and act on them. The reason they do this is when a motor runs more efficient it’s emissions output is less. But a motor also runs hotter this way and not designed for this. This is why the oxygen sensors exist. They sense less emissions in the exhaust and adjust the “straight” gasoline fuel mixture. They are designed to work with a inefficient motor power stroke. If the power stroke of the motor is efficient, the motor runs too hot. Basically the oxygen sensors are a safety feature for a inefficient system like a motor has when it burns or is running a straight gasoline mixture and they enrich the fuel mixture, or swing this straight gas fuel mixture back from being too lean. There is NO super heated steam to cool the cylinders on downstroke like there is with a hydrogen fuel supplement. So with straight gasoline used by the cars fuel system you cannot run the motor more efficiently as there is nothing to cool it down, outside the parameters the engine was designed around. Running a HHO/HOD kit cools your motor BUT also makes emissions lean or cleaner.

The more hydrogen gas used, the leaner or cleaner these emissions can and do become. Which means the oxygen sensor will trip, enriching the GASOLINE portion of the hydrogen/gasoline mixture making your vehicle burn more gas so as the motor runs less efficiently and not as hot. No savings there!!! So this is where the EFEI sensor comes into play. This sensor talks to the onboard ECU of the vehicle and keeps it in a closed loop configuration inhibiting its ability to enrich the gasoline portion of the fuel mixture, safely, when a hydrogen supplement is added or active.

If the hydrogen gas mixture or amount being produced/used is too much, in other words you use the amounts of hydroxy made for a 5 litre motor on a 2.5 litre motor, that will again trip the oxygen sensors regardless of using a EFEI sensor or not. So the electrolytic mixture of water and sodium hydroxy is tuned to the size of the vehicle motor and if needed a EFEI sensor is used for larger engines, 1.8 litres or above.

Our HHO kit is 2nd to none

SEHH sells FGS’s unique and one and only hydrogen on demand kits. Our HHO kits turn any vehicle into a higher fuel economy, ZEV eco car. Works for 1.5 to 40 litre motors, freeze kits included in all orders in Canada. See our exciting product line, mileage fuel economy videos, clean engine video, easy install video, save hundreds a year on gas video. Our kits are reasonably priced (unreal value really) for what you get and are 2nd to none.