Volvo RWD 200 Forum

INDEX FOR 1/2026(CURRENT) INDEX FOR 1/2004 200 INDEX

[<<]  [>>]


 VIEW    REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

Running rich - Several codes 231, 232, 221 200 1991

posted by  TONY H on  Tue Apr 26 13:37 CST 2011
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Fri Oct 17 16:39 CST 2014
[RELATED]

Seems odd, Change the exhaust and get a rich running car. You say you went through the obvious O2 sensor since that's the only fuel related part of the exhaust .

Unrelated to exhaust change might be Fuel Pressure regulator. Pulloff front hose of regulator and check for wetness in that hose. When the Regulator's diaghram fails it dumps fuel into that forward hose that sends it into the Intake manifold. Causing a rich condition. That forward hose should be dry and almost Gas Fume free.

--
'75 Jeep CJ5 345Hp ChevyPwrd, two motorcycles, '85 Pickup: The '89 Volvo is the newest vehicle I own. it wasn't Volvos safety , it was Longevity that sold me http://home.lyse.net/brox/TonyPage4.html http://cleanflametrap.com/tony/






THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD

New Running rich - Several codes 231, 232, 221 [200][1991]
posted by  ACVOLVO subscriber  on Mon Apr 25 17:46 CST 2011 >


<< < > >>



©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.