Hello:

I'm installing an electrolizer combustion enhancement device (Hydrogen Hydroxide gets added to the combustion chamber). In order to bypass or fool the O2 sensor into thinking nothing's happening I need to interrupt the signal or high side wire with an electronic device. My O2 sensor has two black wires, a green one and a white one. Can anybody tell me which one is the high side or signal wire? It's a 1990 Accord LX.

Thanks in advance,

cpjp

 

The signal wire is the WHT wire off the O2 sensor, the WHT/RED wire from the O@ connector to the ECU and it's Pin D14 on the ECU.

Water for gas eh! Good luck with that!.....

 

Thank you. Would you know if my car has a MAP sensor?

 

Yes it does, IIRC there are a bunch of vacuum lines that connect from the intake manifold to a vacuum control box mounted on the passenger side of the fire wall. The vacuum control box contains the MAP sensor. If you have a newer motor than your car it may be mounted directly on top of the throttle body.