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



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

Check engine codes 231 and 221 200 1989

posted by  porkface on  Sat Oct 15 08:24 CST 2011
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Fri Oct 24 09:12 CST 2014
[RELATED]

do the codes return after you reset the adaptation? and it's 221 and not 121? 121 is automatic mass meter, 221 i've never seen.

221 means the car is lean. 231 is a reaction to what's causing 221. check for vacuum and exhaust leaks. it could also be low fuel pressure and/or a bad amm. i've got the test adapter to lh car and i've not seen it in generic fuel pressure test kits. not sure how you can test it. it's a tee fitting that screws onto the rail where the fuel comes from the tank.

i've never had to chase a 221, so i can't give you a direction. volvo is pretty vague about mixture control testing. 231/232 i've always regarded as a nuisance after chasing it on a few cars and not finding the cause. good luck, chuck.






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.