> >
> > I just got back from autozone and they pulled 3 codes:
> >
> > O2 sensor CKT slow response Bank 1 Sensor 2 (2 times)
> > post catalyst fuel trim bank 1 system too lean (1 time)
I'm not a tech, nor did I somnambulate at a Holiday Inn last nite...but I associate "slow response" with cat problems, usually...that said, I'm not *sure* where that O2 sensor is---sounds like that one ("Bank 1, Sensor 2") might be upstream of cat, up in the exhaust manifold somewheres...possibly they might have replaced the wrong sensor, initially---tho, OTOH, you look to be showing a problem "post-cat", on the same bank 1...hmmmm...it's an 05, warranty service time!!
>
> > I always use premium (i.e. 93 octane). I always (as far as I know: now
> > I'm nervous that I'm not) tighten the fuel cap to at least 1 click.
Go a bit further than one click, get a coupla three or four...this will better insure your gasket is sealing.
> Assuming the 02 sensor really was replaced, and something else is going
> > on, what could this be? I think the Subaru mechanics at the dealer are
> > out of ideas. Spark plugs? Water in the tank? Bad cat? I'm reaching > > here...
Make them reach, under the warranty. Any info on why vehicle was turned back so early---possible you picked someone else's returned lemon?
Get documentation on each service call you make, just in case this is the situation.