Volvo AWD V70-XC70 Forum

INDEX FOR 10/2025(CURRENT) INDEX FOR 6/2023 V70-XC70 INDEX

[<<]  [>>]


THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD




  REPLY TO THIS MESSAGE    PRINT   SAVE 

Failed emission test V70-XC70 1998

posted by  someone claiming to be Vito on  Tue Nov 7 10:54 CST 2017 [RELATED]

Never had an issue passing emission test, until now. Went in with no OBD error codes.Technician said the car threw P0133 while he was testing the car. Report shows low and high RPM NOX numbers twice the allowable limits. I looked up P0133 code, bad bank one O2 sensor. Could faulty O2 sensor cause such high NOX numbers? I checked the hoses and exhaust for leaks and found none. Car runs great otherwise, and has lots of pep.







  •   REPLY TO THIS MESSAGE    EDIT   PRINT   SAVE 

    posted by  someone claiming to be on  Wed Dec 31 18:00 CST 1969 [RELATED]

    Yes, I believe that a faulty O2 sensor can cause high NOX numbers.

    Klaus, can you confirm?

    If it is the original O2 sensor it probably needs replacing.



    Mark this post as an answer to my question<- Use this feature to mark quality replies to your post.





  •   REPLY TO THIS MESSAGE    EDIT   PRINT   SAVE 

    posted by  someone claiming to be on  Wed Dec 31 18:00 CST 1969 [RELATED]

    Front O2 sensors don't last forever, how long has this one lasted?
    --
    Keeping it running is better than buying new



    Mark this post as an answer to my question<- Use this feature to mark quality replies to your post.




<< < > >>



©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.