Yeah, that's about right. There should be one before the cat, and another after, so yes, you have 2. The V6's (other than the OBD I 1995) have 4, 2 on each cylinder bank.
"When I take action, I'm not going to fire a $2 million missile at a $10 empty tent and hit a camel in the butt. It's going to be decisive." - President George W. Bush
