yeh sorry about that 02' post, weird, its a 2000 and i guess i put it backwards. my friend that drives an is3000 swears its my CAI but i also think its my cat, when it was installed. so i guess ill call around and see who can check the code for me.

but also, how would i go about fixing this and how much if i bring it into a shop?, do i need an o2 similator?