Easy Maf/Map Enhancer Schematic

[SpecHunter]

Here`s a great schematic for Basic wiring for this unit.
I built the dual and integrated the enhanced/original switch from the other config.
http://hhoencyclopaedia.net/hho/diag...0schematic.pdf
Mine works great ... all the parts from RadioShack (20 bux or less)
note: If you omit the led light, the unit needs no powersupply at all!

[tinkit]

Can anyone post parts that are need to buy at radio shack? I am disabled and the mind does not work to good now days.
Thanks in advance, Tinkit

[mytoyotasucks]

for a dual:

- 2 X 33K .5watt resistor
- 2 X 50K linear potentmeter
- 1 X 3 postion switch
and some wire - 20 gauge or lighter

[Randohr]

I installed a MAP adj on my truck in the summer and had no luck with saving fuel. I removed it and am only running an efie. I could adjust the MAP voltage and effect the runnability of engine. If I lowered the voltage, I could watch the O2 reading lean out, then the ecm would adjust the gas back up. Just like it does with the HHO leaning out the O2. If I increased the voltage (over the stock 5vdc) I would have a little more power but no gas savings no matter what else I did? What was the MAP adjuster supposed to do to save fuel? I'm guessing it went into open loop with an increase in MAP voltage over stock (5vdc).