afc for map sensor on afm?
 

so one of my friends made an air fuel controller for his car and then made another and gave it to me. the only problem is he made it to work with a three wire map sensor, is there anyway i can hook it up to our stock afm to make it work?

A home made AFC? I wouldn't run it.

But, without knowing more about the circuit and it's inner workings no one will be able to comment... It's unlikely it can be done without a rework.