Volvo RWD 200 Forum

INDEX FOR 1/2026(CURRENT) INDEX FOR 12/2010 200 INDEX

[<<]  [>>]


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

Re: failed emissions 200 1988

posted by  someone claiming to be Michael on  Wed Sep 26 17:29 CST 2001 [RELATED]

I totally expected to be in your situation today, but my '87 240 somehow passed. I saved a few bits from the board a couple weeks back just in case. Here's all that I could find from what I saved, and hopefully it will help you:

"High NO is often the result of a vacuum leak." --Steve Ringlee

"NOx and CO correlate inversely. When you lick the excess O2 problem that is giving you the NOx, I would expect the CO to increase. Enriching the mixture will accomplish this, but the correct way to do this is by eliminating the air leaks, not increasing the fuel flow." -- unknown Brickboard contributor

Here are the results from my VA emissions test at 25mph and 1712rpm:

HC allowed=157, mine=121

CO% allowed=1.00, mine=0.51

NO allowed=1121, mine=1062





THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD

New failed emissions [200][1988]
posted by  someone claiming to be mike  on Wed Sep 26 14:40 CST 2001 >


<< < > >>



©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.