I haven't done this but ... how about attaching a ground with a hose
clamp?  Just a thought.

Mike

Evan Mac Donald wrote:
> Any body got any other ideas for attaching a seperate ground to a 1-wire O2 sensor? I don't want to trust the rusting exhaust system and its connections. The only permanent connection I can think of is to solder a lead to the outer housing, but I am afraid that even the upper edges get too hot, and will remelt the solder. Can a lead be welded on? How much heat is too much? I can braze a connection in place, if that won't destroy my shiny new sensor.
>
>   And that raises another question. On a newer-style, self-heated O2 sensor, is the ground only for the heating element, or does the sensor also use that same ground?
>   In other words, does the sensor ground through the housing and then the exhaust system, or does it also use the ground for the heater?
>