Volvo RWD 700 Forum

INDEX FOR 1/2026(CURRENT) INDEX FOR 6/2002 700 INDEX

[<<]  [>>]


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

1986 740 - ALMOST Pass Smog - NOx still to high (by new standards) 700 1986

posted by  Greg Hebert on  Wed Apr 20 03:30 CST 2005
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Tue Sep 22 08:17 CST 2009
[RELATED]

Hi All,

Almost got a pass with a timing adjustment (was way advanced, now at 12/13 degress BTDC). However, now that the limits were tightened here in Ontario my NOx reading of 1377 is above the new limit of 1088. The other readings at 1691 RPM (Load Test) are;

HC 46 (limit 98)
CO .05 (limit .05)

The Idle Test (751 RPM);

HC 70 (limit 300)
CO .34 (limit 1.5)
NO N/A N/A

Anything I should conclude? I'm not familiar enough with the relationships between the #'s to know if this suggests a new CAT, a new O/2 sensor, injectors, a leak?

I believe there IS a small leak before the CAT if this affects things any.

2 Days 'till wife's B-Day to get this cleared up ;>(

Thanks,

Greg






THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD

New 1986 740 - ALMOST Pass Smog - NOx still to high (by new standards) [700][1986]
posted by  Greg Hebert  on Wed Apr 20 03:30 CST 2005 >


<< < > >>



©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.