Grounding the sensor is no big deal.Ill gibve it a shot. Got lots o hose
clamps. Now, the coaxial cable is interesting. The sensor is a universal
type and reuses the single wire from the factory.Im thinking the actual
blade connection , or connection area proper, is suspect.Are you talking
about the green coax cable in the wring harnas? How on earth do you fix
that? Is the problem where the green cable meets the connection blade on
the wiring harnas?Not the sensor connection? Need to trim off any copper
there? I think the 3 wire O2 sensor  is more of a coaxial? The little hole
for outside air to get in. Where is this? Never considered that it needed a
little outside hole.I think the o2 sensor is disconnected from the computer
till it gets warm anyway.Not sure.