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Just a 50K potentiometer wired into the MAP sensor circuit that adjusts the A/F ratio. Upstream O2 sensor has been disconnected. No EFIE in circuit.

My 1998 Toyota Corolla LE just turned 200K. In October 2008 I had an HHO system installed on it and the car continues to run great. I've been posting my fillups every week for the last two years on...

I just wanted to relay a story you might find interesting. First, my vehicle. It's a 1998 Toyota Corolla LE, 4-spd auto, with close to 200K on the clock. Back in October 2008, I had a hydrogen...

I'm not sure, but I think it's the wide band sensor. Thanks, I'll check out the link!

George

Hi everybody. I confess to being an infrequent contributor. I'm not much into posting unless someone brings up a question I can speak to intelligently. Today I am looking for some input on a...

I'm glad to have helped ! Thanks!:)

George

Well, I am not getting an 81 percent increase, but I have seen gains of up to 20 percent (tank averages) with my system that I purchased from www.hydrogen-boost.com. I didn't shell out 3500 bucks...

On my HHO system, the generator is controlled by a switch that plugs into the vacuum line. At idle or low acceleration (i.e. idling or cruising) whenever the MAP reads below 5 inches, the switch is...