ok, so I'm finally going to replace my o2 sensor [yea i kno, im lazy and it took way too long]

Q: does anyone know if getting a 'performance' o2 sensor makes a noticable difference to anything ... or should i just get the cheapest one around?

 

I really dont think it makes that much difference...

 

i didnt think so either k thx for confirmation

 

update on this deal here ... its my air inflow sensor [got the diagnostic yesterday] and this problem should get fixed w. my new intake ... different thread ...

this thread can be closed now *wave*

 

I am also plagued by the "check engine" light. Diagnostic indicates "P0161", Sensor 2, Bank 2.

Does anyone out there know which specific sensor that this relates to?

I am no mechanic, but it looks like there are 4 sensors on this car......two on right side of the engine (front and back), one in the exhaust before the cat. converter, and finally one in the cat. itself...or what looks like the cat.

At approx. $150 a pop, I don't want to buy the wrong part. Thx. for any help.

 

I'm no mechanic either, but I used to own 2 ES300's and the Sensor 1 Bank 1 went bad on both cars, so I took it to one of my friends who owns a repair shop and he told me to replace the os that mounted on the manifold of the number 1 spark plug.
In your case I think the Sensor 2 Bank 2 is the other OS that mounted on the the other manifold.

 

Just to follow up......I replaced Sensor 2, Bank 2. It is the one in the exhaust pipe under the car....attaches to an electrical socket under the passenger seat. It was a bear to get to, but I managed to do it. Saved about $120 in labor, but the part was a killer at $185. Anyway, check engine light has gone out and stayed out.

 

i had mine replaced at a local shop in southern california. He charged me $210 installed. I think that's a pretty good deal.