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 

Check Engine Light On- Problem not fixed code P0422 V70-XC70 2001

posted by  KlausC on  Tue Jul 15 09:46 CST 2008
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Fri Oct 24 10:15 CST 2014
[RELATED]

That message means that the O2 sensors, front and rear, cannot confirm clean burning engine.
Most shops will tell you that your Cat is distroyed and you will need two O2 sensors to boot!

I say use minimum 89 octane. If you currently use regular, fill the tank with premium to bring the tank up to 89 octane. The use of 87octane will cause the engine to knock; the knock sensors will inform the ECU/ECM and your timing will be retarded and additional fuel will be used to cool the piston chambers to stop the knocking.
This additional fuel is probably not burned completely and winds up in the cat. Too much of a bad thing is not good for your car.
If you look at the price of gasoline, 89 octane is 10 cents/gallon more than 87 octane, and 91/92/93 octane is 20 cents more than "regular". After you fill an empty tank with 18 gallons of fuel, multiply the 18 gallons by 10 or 20 and calculate how much more good gasoline costs compared to junky regular : $1.80 or $3.60 - per tankful! Whoopdeedo. One cup of Starbuck's coffee!!!

Klaus
--
I still miss my 164 and my 854T. Just driving a V70R :)






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.