Searched all over the forum and I could not figure out which wire on the MAP is the 0-5v reference wire. I am tapping into the MAP for my Devils own meth controller. Currently I have tapped the right wire and it seems to be sending a constant signal to the controller as the pump sprays constantly regardless of what the settings are on the controller. Is this the wrong wire for 0-5v or is the righter most wire the correct wire and its just my meth controller thats screwing up?

 

You don''t want the referenc wire. You want the signal wire

 

ok which wire would that be?

 

I would assume the middle