What is the difference between pre cat O2 sensor and Post car O2 sensor in term of sensor wise(not
06-14-2008, 06:31 PM
#1
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What is the difference between pre cat O2 sensor and Post car O2 sensor in term of sensor wise(not
functioning wise) Also, where can I buy a cheaper O2 sensor? Could I buy universal one, if not why? Thanks!
06-14-2008, 08:27 PM
#2
I used the universal sensor that i looked up on bosch's website.
Local autozone had it in stock less than $100.
as far as the differences in pre-cat and post-cat sensor I'm not sure.
-richard
as far as the differences in pre-cat and post-cat sensor I'm not sure.
-richard
06-15-2008, 04:36 AM
#4
AudiWorld Super User
in my ATW they are the same except for the connector
the bosch catalog is wrong about the part # for the universal rear one. I tried a couple of them and got codes before I even started the car. I then tried a front universal and all was well.
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