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



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

Stalls at start and stumbles at cruise; 2-3-1 fault code 200

posted by  LoveMy240Wagon on  Fri Jun 25 03:54 CST 2010
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Tue Dec 31 09:52 CST 2013
[RELATED]

Hi, I've got a 1990 240 wagon with a 1993 powertrain.

When I start the car it stumbles and stalls on the first attempt (hot/cold, doesn't seem to matter). If I try to feather the gas pedal or even floor it the engine just stalls right out, doesn't even attempt to rev up. So I simply let it die and then start it again, the second time it stays running 9 times out of 10.

While driving down the road if I'm not giving it any gas or just lightly pressing the pedal, I can feel the car surging forward and then losing power and slowing and then surging forward again. If I put the pedal down the car performs just fine.

I pulled a code yesterday, 2-3-1 "Fuel system compensating for rich or lean air/fuel mixture at cruise".

I’ve changed the Idle Air Controller and the Control Pressure Regulator simply because I had spares. I removed and cleaned the throttle body. I checked for leaks in the clean air tube and checked all the connections. I haven’t found any leaks and nothing I’ve done has made any improvements.

Unfortunately, I'm a bit stumped where to go from here. If the MAFS, temp sensor, or oxygen sensor was faulty I should get a code for that. What else is there that controls the air/fuel mixture?

I noticed that my gas mileage has dropped significantly from about 320 miles per tank down to 260 so my guess is that it’s running rich.

Any ideas?






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.