O2 Senor - Which sensor is P0133?

[Blind Driver]

Can someone tell me which O2 sensor the code P0133 is for? Exhaust manifold
or Catalytic convertor?

 

[blah blah]

Can someone tell me which O2 sensor the code P0133 is for? Exhaust manifold
or Catalytic convertor?

Bank 1 Sensor 1

Should be upstream (before cat).

P0133 = Slow Responce
Sure you're not just in need of a tune up?

 

[Blind Driver]

Could the sensor be okay then? I am currently having to replace the manual
trans in my wife's 97' SL1 and don't have the money for a tuneup right now.
They had to drag her car out of the garage. It would roll a few few and
then act like it was in gear. After dragging it out it started leaking
trans oil badly (stream).

So this sensor is just before the cat then? Figures... I only have 203K
miles. Was hoping to get it broken in before I had any problems. Thanks.

 

[blah blah]

Depends on the condition of the plugs and wires etc etc. At 203k miles
the sensor could be crapping out.