Volvo RWD 200 Forum

INDEX FOR 1/2026(CURRENT) INDEX FOR 4/2005 200 INDEX

[<<]  [>>]


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

Smog Test Results-What's it all mean? 200

I had an emissions test done on my 81 B21F at DEQ yesterday. I'm hoping some of you can help me analyze what the numbers mean.

HC PPM max 220: my car 68 @ idle, 27 @ 2500 rpms.

CO(%) max 1.00: my car 0 @ idle, .32 @ 2500 rpms.

CO + CO2(%) min 6.0: my car 12.2 @ odle, 15.5 @ 2500 rpms.

Does all this sound pretty good? My only driveability problem is a rough idle which I'm still trying to track down. Do you see any indicators here? I know I have a small intake air leak at either the #4 injector or the #4 intake runner which I'm working on today.

Thanks in advance for any help you can give.
--
Thanks to all for the help. 81 242 Brick Off Blocks, Turbo bars and wheels, B21F, M46; 86 244, 142k , auto.






THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD

New Smog Test Results-What's it all mean? [200]
posted by  DougC  on Wed Dec 29 04:51 CST 2004 >


<< < > >>



©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.