Fuel Cut Defenders (FCD)

FAQ

I'm not very good with electronics or wiring, can I install an FCD?
I don't know what version SymTech FCD I have.
I've lost/removed the wire labels, or the color coded markings have been removed.
I've installed the FCD, and my car still has fuel cut.
I've installed the FCD, and my car runs, but poorly.
No matter where I set the FCD, the output voltage is high.