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



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

Hi NOx 900

posted by  rjk2 on  Tue Dec 1 12:10 CST 2009
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Sat Jun 21 05:30 CST 2014
[RELATED]

The car sat for a year awaiting a tranny & crank (don't ask).
Finally installed it and got it back on the road.
It will not pass emissions, CO & HC are OK but NOx is high.
1st time through it just barely missed, literally by a couple of points.
I figured it was the old gas so I ran 2 new tankfuls through.
Found bad pumps & replaced.
Ran it at highway speeds for about 500 miles.
No codes are being thrown.
2nd time through it is 400 points over.
Looking over the readout, everything went up.
It looks like the guy ran it with the overdrive OFF (RPM's were UP too).
But a 400 pt bounce in the NOx tells me the old gas was not the culprit.
I can get another test & make sure the OD is ON but don't think the NOx will drop sufficiently to pass.
I plan on seafoaming it, checking the high voltage side of the ignition, etc.
BUT...
Am I looking at a bad CAT?






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.