Which O2 Sensor?

[ukrkoz]

ok, time to change that O2 sensor.
on 95 eclipse, 2.o, non turbo, which one is it that normally goes bad - one in exhaust manifold or one next to cat?
thank you

 

[pj91gsx]

exhaust manifold is the important one, the cat one makes sure that the cat is working correctly.

 

[1whitegsx]

I have a 96 2.0L turbo and Ive only had a problem or 2 with the one next to the cat.

 

[Andy123]

my o2 sensor by the exhaust manifold just went. the ones by the catalytic converter arent as big of a problem

 

[pj91gsx]

You can get the cel checked at Advance auto or you can pull the front o2 and if its white the o2 is good if it is black the its bad and your motor is running rich.