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 

NOx problem/ egr valve location 200 1989

posted by  Geek4AllSeasons on  Sat Apr 1 07:24 CST 2006
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Tue Jun 4 12:18 CST 2013
[RELATED]

My 1989 240DL wagon failed inspection with NOx emmissions double the passing value. A guy at the inspection station and a local mechanic said the most likely cause was the catalytic converter.

An EPA study (http://www.epa.gov/otaq/regs/im/obd/p01003.pdf) referenced by Paul Grimshaw - Passing Annual Emissions Tests (Part 2) (http://www3.bc.sympatico.ca/Volvo_Books/engine10.html) indicates otherwise. The only repair that matched the emmission test data was EGR related. It makes sense intuitively since that control's purpose is reduction of NOx emmissions.

Well, dah, I haven't been able to locate anything that looks like an EGR valve or sensor. After hours of pouring through the Haynes manual and countless searches it isn't even clear if this car has an EGR valve. The EZ-116K electronic ignition control unit performs the function electronically.

There is an unidentified hose that goes from the intake manifold through the firewall to a plastic sphere under the radio (????). I suspect that the air control valve could be part of the mystery.

Any information and/or links would be appreciated. I have not found any pictures or diagrams for this engine configuration.

Thanks,

David






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.