Originally Posted by Uncle Scotty
headers....that is ANOTHER issue....
i have seen more than a couple guys who put headers on their cars and have the o2 sensor(s) die shortly thereafter!!!
seems it is the oil left over from making the header that gets burnt off and kills the sensor
this is why it is always a good idea to clean the INSIDE of the header out with gas or brake cleaner or whatever BEFORE you install it and run it
It looks more like the problem here is that the damn bung is placed in such a way that when the motor torques the sensor hits the crossmember and got bent.
I ran the car sans 02 for the first 100 miles so it definitely wasn't residual oil...