hi everybody

I'm new in this theme, and i just have done my first hho generator, mm i have a Honda civic 97 and i did the hole before the air sensor, my honda civic makes about 50 km per galon, so I was expected it to make about 67km per galon because my generator makes 600ml per minute,

so i put 2 galons to start my test and what is the surprise the car make me 39 km with 2 galons:confused, so reduce from 100km to 39km, can anybody tell me what i did wrong

im using brute forze with a relay and my hho generator is 20 amps.

Regards