1998 Explorer 4x4, 4.0
14 cell / 2 stack 6x9" drycell reactor 28%KOH dual EFIE, MAF enhancer, IAT & ECT controllers, 2.4 LPM @ 30 amps. 6.35 MMW http://reduceyourfuelbill.com.au/forum/index.php
disconnect the battery negative for 20 minutes and re-connect
i have had pretty good success with this same vehicle using pwm/efie/map enhancer/28% naoh soln and 21 plate purchased online electrolyzer. Although i am still experimenting and have not gotten consistant results. i hear this vehicle is a tough one to crack. have managed 25%gains so far.
I get lots of weird results. First reason seems to be poor fuel economy when engine is cold. I usually reset the scan gauge 2 to solve this. Second is I think weather plays a part in fuel economy or HHO operation. Third is we all want to get better millage and by driving better we can save gas. This is very difficult to judge.
I am working on a dry cell and hope to post results in a few weeks. If it works I will post the plans.