The message to which you are about to reply is shown first. GO TO REPLY FORM



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

02 sensor issue really confusing me.... 700

posted by  Herb Goltz on  Thu Nov 25 08:15 CST 2010
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Fri Oct 24 13:23 CST 2014
[RELATED]

What is the voltage reading? It might be that you aren't seeing swings because you are pegged at rich or lean. The O2 sensor just tells you what it "sees" in the exhaust gas. If the oxygen level in the exhaust gas is constant, the reading will be too. With a failed fuel pressure regulator (for example) you would see rich running all the time, so the O2 sensor will reflect this bias.

To me this probably means that the O2 sensor code is a symptom rather than the cause of your problem.

I'd be on the look-out for things like a failed fuel pressure regulator, a bad coolant temperature sensor or a vacuum leak. Any issues with how the car runs?

Good luck!






USERNAME
Use "claim to be" below if you don't want to log in.
PASSWORD
I don't have an account. Sign me up.
CLAIM TO BE
Use only if you don't want to login (post anonymously).
ENTER CAPTCHA CODE
This is required for posting anonymously.
OPTIONS notify by email
Available only to user accounts.
SUBJECT
MODEL/YEAR
MESSAGE

DICTIONARY
LABEL(S) +
IMAGE URL *
[IMAGE LIBRARY (UPLOAD/SELECT)]

* = Field is optional.

+ = Enter space delimited labels for this post. An example entry: 240 muffler


©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.