Have you replaced your O2 Sensors

[beav626]

I haven't found much information on the web about this except that they say the O2 sensors should last the life of the car.

so with over 100k on my motor I was thinking about replacing my O2 sensors to give my fuel trims a fresh reading.


Have any of you done this?

 

[blueflamed03]

Danny, Ive done some reading up on this too.
I for some reason seemed to be getting less MPG. So I heard, change the 02's. Well I have 97,000 miles and no light.
So after talking to some guys on PT.net they say the ACDelcos are pretty tight, and if you get off in tolerances, they will send a code. So hopefully mine are still good.
No lights. But at Rockauto.com the Denso's are like $80 each...and those or AC Delcos would eb what I'd put in there. Some swear more that the Deno's are betetr.
But if you dont have any codes, I say keep rocking...I am.
I cleaned my MAF, TB...and it helped.Then I changed from 10% eth to straight gas, picked up another 1 MPG...so back up to 12.8 in town.