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 

Must replace catalytic converter. What to do? V70-XC70

posted by  KlausC on  Wed Dec 23 21:28 CST 2020
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Fri Oct 24 10:15 CST 2014
[RELATED]

87 octane is fine, so long as you do not exceed 4,000 rpm under boost. You have a low pressure turbo that kicks in at 1200 rpm, which means that your compression gets above 11:1. The 87 octane burns hotter than 91 octane, which could have resulted in a burned valve. Using 'hotter' spark plugs can also contribute.

This should not be a problem with the NA engines as the compression ratio is constant.

Go for that O2 spacer in the rear. That will take the sensor out of the exhaust stream and get rid of your CEL. The front O2 sensor is the one that does all of the work anyway.
--
Keeping it running is better than buying new






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.