scbba
12-27-2013, 01:43 PM
I have a 2006 scion xb only getting about 20 mpg and I wanting to go with hho to see if this will help my mileage. I have built me a wet cell but after reading and watching the hho videos on youtube wet may not be the safest route to go. So my question is has anyone here successfully been able to get a hho system to work on a scion xb without throwing any codes