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



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

SAS and cat issues troubleshooting help 850

posted by  KlausC on  Tue Dec 1 10:35 CST 2009
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Fri Oct 24 10:15 CST 2014
[RELATED]

SAS will not cause a misfire, it only is supposed to work until the engine starts to get warm, about 2-3 minutes after cold start only.

A misfire in #5 is usually brought on by an over-rich condition due to unmetered air entering the intake manifold. To find a leak, spray some brake cleaner/TB cleaner on any suspected vacuum lines and the intake from the air cleaner. If there is a leak, the idle will change. Don't forget the intake manifold gasket, it can leak, and the vacuum tree next to the throttle body.

You need a better shop, CAT converters cannot be rebuilt! And your cat is OK for now. It is possible that your Front O2 sensor has gone bad, usually does after running rich for extended periods of time.

Klaus
--
Proud owner of a 220S. If I had more room, I would have more Volvos.






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.