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 

excessive NOx emissions -- no EGR 200 1992

posted by  schroeck on  Wed Mar 3 10:56 CST 2004
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Wed Feb 28 06:37 CST 2001
[RELATED]

My '92 240 fails Ohio's emissions test due to high NOx. (1500ppm when the limit is 910ppm)

I've been told that the EGR valve is usually the culprit in this case, but I don't have EGR.

What can I do? I've already tried cooling the engine by removing the thermostat and wiring the electric fan to run all the time. This did not reduce NOx, but did increase hydrocarbon emissions.

The car has a new catalytic converter. I have checked the fuel injection and emissions computers, and they record no fault codes.

What can I do?

-Steve Schroeck
--
'92 240 Wagon, '92 740 Wagon






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.