Help..Anybody ever used Joeyp fuel cut defenser?

[Wheredjaredgo]

The instructions say I should hook up one wire to a good ground and the other wire to terminal -B wire of the Maf sensor... My question which color wire is -B ? It has no label that I see and there's three to choose from. I don't wanna trial and error and screw Somethin up. Thanks for any help.

 

[Wheredjaredgo]

I've tried both wires that had voltage at separate times and neither of them worked infact they caused a lean bank one check engine light to come on... I'm thinking this Joeyp thing is a worthless radio shack experiment. I've disconnected it and I'm done trying to get it to work.