Header Install Question (part 2)

[Eric Waterman]

It sounds like the adapter is still on the O2 sensor.  This would explain
why it would fit in the AIV hole.  The O2 sensor is a 22mm, and the adpater
is a 32mm.  Separate these, and the O2 sensor will fit in its new home.

Eric Waterman
1996 200SX SE-R
1997 200SX SE-R
1991 Sentra SE-R

  So now I'm wondering is the thread diameter of the O2
> sensor supposed to be smaller, and I somehow have a bastard O2 sensor?