I dont want to get into too much detail until I hear back from pete, but one of my green signal wires from the unit itself has found a path to one of the black ground wires on the unit. I dont see any external paths, so Im thinking its on the circuit board. Not sure what would cause that, since it was timed and running great until I got home and shut it off, then it wouldnt fire cyl 2 and 3.