I forgot about the reverse polarity thing. I wonder if and how that
affects it. I have a ground wire that connects to the circuit and the
engine. Hmmmmmm..... The only engines I have tried so far are '01 Taurus,
'94 Explorer, '95 XL1200 and B&S push mower engine. Without a digital scope,
I am basically using trial and error to see what antenna/filtering arrangement
provides the cleanest most accurate results.

 "The government cannot give anything to anyone that they have not first
 taken away from someone else."