HOW TO: SP20 Intake Modification

[Toveco]

Hi every one!
I am new on this forum and as a owner of a NICE Mazda Astina 1.8
I must ask, if you mess whit the air flow and make it to give more air to the engine, you must fix the AFM sensor (Air flow sensor) Right?
otherwise the sensor tell the computer to give more petrol i think.
and now to my question, some one now which cable go from the Air Flow sensor to the computer, I found one ho give 5v and go up to 6-7v when i give
raise throttle up, light green and brown mark on it.
I put on a box whit 2 potentiometers and 2 resistors, then I can cheat the computer.

I bee very happy if some one now this thing and can tell me,
I don't have a Manual for my car in English only Japanese and that don't help me a thing

Thanks if you give me a good answer
Tom