Originally Posted by doz
Or you can try the spark plug anti-fouler trick. Drill out the anti-fouler and install it to the o2 bung then install the o2 sensor. Works on some vehicles (seems to work on more vehicles than not) so its not a guarantee, but Ive used it on other cars and its worked just fine
apparently it works on my '97. the cat was gutted....and there is an extra 'fitting' on the downstream o2 sensor. it has to be a 'fouler' screwed into the hole, and then the sensor screws into that. No trouble codes for me.