I got this off a friend of mine and it only has 2 prongs with a resistor soldered on between the two. I have a homemade 15 ohm resistor for a tranny resistor and it's always worked fine before. Like I said, It was fine the first few times I started it after installing the kit, But now I have a blinking power light. I know it is working though because I can feel the difference in the shifts. I'll go out and try to troubleshoot in a little while. It's kinda cold out and it's slowing me down.