Volvo AWD S70 Forum

INDEX FOR 10/2025(CURRENT) INDEX FOR 11/2007 S70 INDEX

[<<]  [>>]


THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD




  REPLY TO THIS MESSAGE    PRINT   SAVE 

CE codes P0134, P0140: Oxygen sensor? S70

posted by  scottrob on  Thu Apr 18 14:23 CST 2013
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Sat Apr 20 00:59 CST 2013
[RELATED]

Have a 1999 S70 GLT, check engine light popped on. Ran OBDII, got P0134, P0140. Doesn't appear to have any leaks, guessing its the oxygen sensor (rear). Anyone have experience replacing these? I'm guessing the front will go soon too, so mine as well do that one too. Thanks for your input!








  REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

CE codes P0134, P0140: Oxygen sensor? S70

posted by  KlausC on  Thu Apr 18 15:43 CST 2013
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Fri Oct 24 10:15 CST 2014
[RELATED]

P0140 points to the rear O2 sensor and P0134 says front O2 sensor. Pretty unusual to have bot of the sensors go out at the same time. Did you clear the codes and see which ones came back first?

Did you run over a tall speed bump and scrape the O2 wires for the rear sensor? You also might just try cleaning the plug area on to of the tranny housing.

You are right about it is probably time to replace them, they do not age well. If you do, try to get OEM as they will normally work better than 'others'.






<< < > >>



©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.