Originally posted by tourman113:
Hey hector...i didn't have to wire anything into my coil  I just used the fuse box and the one green harness i talked about. I didn't have to go through the firewall. 
You tend to get a more accurate reading wiring it to your coil. 
Hector
2003 Rally Red Mitsubishi Evolution VIII
257HP/259TQ
2005 Lapis Blue Mazda 6s
RET: 00 Cabernet Red Ford Contour Zetec ATX SUPERCHARGED
160HP/141TQ
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