Volvo RWD 700 Forum

INDEX FOR 1/2026(CURRENT) INDEX FOR 6/2003 700 INDEX

[<<]  [>>]


 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

Hig NOx - failed smog 700 1987

posted by  DaJet on  Fri Apr 28 07:50 CST 2006
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Tue Jul 3 10:50 CST 2007
[RELATED]

My 87 745T w. 332K miles is in good tune with fresh ignition parts and runs great w. normal fule consumption. It failed the CA regular smog test the other day but only on the NOx. I was wondering if there might be something I could try to make it pass, before throwing parts at the problem. My cat, O2 and AMM sensors all have over 100K miles on them, but the tech said the cat appeared to be working. I mean is there a certain brand/octane of gas that is better than others? can I retard the timing slightly? basically, any 'free' or cheap tweaks or tricks I can try?

Thanks,
JJ






THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD

New Hig NOx - failed smog [700][1987]
posted by  DaJet  on Fri Apr 28 07:50 CST 2006 >


<< < > >>



©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.