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



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

Erratic idle 200

posted by  gopeshs on  Mon Oct 11 23:53 CST 2010
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Mon May 19 14:01 CST 2014
[RELATED]

Lately while starting the 1990 SW the rpms dip to about 100-200 before they level at standard 900 or so. TThe rpm does not always stay at 900 but sometimes it goes to 1000 or even higher for a second or two. Last evening I found code 232, rich/lean at idle. I think it should be due to an air leak which I could not find. Please confirm if this will be the most likely reason. Can it be the o2 sensors? I do not smell fuel or see smoke. I have emptied many brake cleaner cans trying the locate the leak, Intake gasket and TB gasket are two month old ( due to HG job)

This damn code comes back again and again and although accordian type intake hose looks good and I have it covered in all type of goop to account for any pin holes , is the likely suspect. Replacing it most likely will be like throwing parts at the car. I have the two thin vacuum hoses blocked, one from the canister and other from the PCV holder.

Any suggestions are welcome. So far this has been a common recurring problem with this car.
Regards,

--
DD-1990 240 DL SW M47II FI 3.1 234 K miles






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.