Bypassing the Oxygen Sensor
Last night, I did a test with Zhe’s Honda Civic ESi…
At first, I was giving up already because the HHO was not only doing good to the performance of the engine… it was also making the engine consume more gasoline.
I disconnected the HHO for sometime and observed how the engine is going to perform without it.
Since the spark plugs are old and wasn’t replaced, the engine behaved weaker, and with apparent misfires taking place. Without HHO, engine response is slower. My right foot goes more deeper, more than halfway to get some satisfying accelerations.
Definitely, much power were lost with the HHO disconnected.
Again, I observed the engine again… analyzing where I can inject HHO without passing the oxygen sensors. I found a vacuum inlet after the sensor… I remove the hose connected to it and connected the hose from my bubbler to it.
Voila!
I found the perfect spot to connect HHO to a Civic EFi!
The Bubbler made more bubbles! The engine started easily! and with More powerful accelerations!
I drove it to Manila and back… keeping an eye on the Fuel Gauge… observing how fast it will drop.
To my surprise!… it barely moved!
It only dropped one notch when I was already back home.
I am happy now that I have conquered an EFi.
I am not after replacing gasoline with water… I am only looking for ways to save gas. Since I have no job and I have very limited lifelines… saving gasoline is a big deal for me.
I hope this blog can help you guys out there.
More Horsepower everyone! (videos to follow!)
I’ve been finding a way to bypass my O2 sensors for my electrolyzer. I do not understand when you said you found a vacuum after the O2 sensor.(?) Right after the O2 sensor in the exhaust manifold? or before or after the catalytic converter perhaps? There is not in anyway a vacuum in any place after the O2 sensor/s in the whole length of the exhaust system because obviously, everything is in positive pressure. Unless you were referring to the MAF sensor, incorrectly thinks it was called an O2 sensor perhaps? Please shed light to my skeptism. Regards!
The o2 sensor should be located in the exhaust manifold on most cars. If you add HHO to your engine more o2 will leave the engine, this is a fact. The o2 sensor will sense the abundance of oxygen and tell the ECU (engine’s brain). The ECU will then correct this by sending more fuel into the engine, thereby burning more fuel even though you have added HHO. The solution is to trick the ECU into thinking there is very little o2 leaving the engine.
The o2 sensor works using a very low voltage. If you increase this voltage going from the o2 sensor to the ECU by 1 volt (you can do this with a penlight battery), the ECU will think there is very little o2 coming out of the engine. The ECU will then decrease the amount of fuel going into the engine.
DO NOT bypass the o2 sensor completely.
The o2 sensor sends out a pulse (variation in voltage). If the ECU receives a signal that is not pulsed it will automatically add fuel, thereby defeating the whole purpose (besides having to reset your car’s computer).
Please post any corrections so I can reassess my theories if needed.
Hi CanadaMan,
You are right, the O2 sensers are usually located in the exhaust manifold. But with this particular car, I could not find it. So I thought, this MAP sensor must have incorporated the O2 sensor already due to its bulk.
But – I am also developing a H2 only module… you mentioned about using a few penlight batteries to override the O2 sensors… does it apply to all modern cars too?
Thanks for the very constructive comment.