I got this info Off another site where allot of us got started in HHO stuff
I'm sure its Ok with the guy that posted it there if I post it here if not all he has to do is say so and I'll remove it <GRIN>
Here is what he posted and then his pics...
...
Well, today I received my Map/Maf Enhancer and as soon as I open the box I began to take it apart. I have been building one based on the schematic that I got off the forum but as a backup I purchased one. I took the one I bought apart it was very simple to make I don’t have the schematic but I took pictures so everyone can make one. I am no electronic expert but this is as simple as its gets take a look.
Ok, now that you have looked at the pictures. There is basically a switch,resistor,pentiometer,project box and some wire ( 2 leads and a bare ground). Instructions: Ater completion of your easy to make Sensor Enhancer. 1. Hook up bare wire to ground or your vehicle body 2. Black wire will be your signal from your map sensor 3. Red wire will be your signal from the Enhancer to computer.
Cowboy (Chris Tolly) tells me the POT is 50kohms !
http://hydrogengenerator.cc/blog/(this is from the Hydrogengenerator.cc web site"Scratch posted some pics of the Map/Maf enhancer)
(he bought figuring anyone could make one!)