Quote Originally Posted by hondaman27 View Post
the wide-band goes to the o2 in the exhaust and is getting power from the wires that powered the narrow-band. those wires go to a spot on the fuse panel the wires are just plugged in to a power and ground spot. reason i think relay is the pop sound. sounded like a fuse blowing.
your right, back track... You ether connected a power to a ground and that was the cause, or the wire is shorted to ground some where... Go to the fuse panel and find where they tapped for the wideband.. Remove it from that circuit!!! Check that circuit the wideband power wire was on for any damage.. Check the fuse also!!