Hi everybody
On my 300TE from 1992, 181 kmilee, the oxygen sensor keeps getting destroyed after about three days. Everything works fine when I put in the new one: It passes emission test, I can adjust duty cycles etc.
After about three days, the "check engine" light is on, and there is voltage output from the sensor. The engine is in good shape (recent headjob, starts very well, revs fine etc).
So what could destrouy the oxygen sensor? Heat? Some chemical in the exhaust?
Thanks for any insights.
Bruno