Volvo AWD 850 Forum

INDEX FOR 10/2025(CURRENT) INDEX FOR 12/2003 850 INDEX

[<<]  [>>]


THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD




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

P0442 850 1997

posted by  mtbahs on  Mon Jul 28 05:45 CST 2008
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Mon Aug 4 07:31 CST 2008
[RELATED]

Have just failed emissions with a P0442 fault. Checked with an OBDII tool and confirmed this as well as getting a Fuel Sys1, CL, Faulty HO2S failure. I took a look at the charcoal canister and found the rubber "J-shaped" tubing connecting the canister to another small hose to be split. On a Sunday, had no access to parts, so I tried a bit of tape until I get parts. Everything else looked ok. After checking again with the OBDII tool, I get the same fault and the MIL is still on. Do I have to clear the fault codes to update the emissions check?? Could this cracked tubing be the only problem?? What about the HO2S fault?? Do I need to R/R the O2 sensor? Any help would be appreciated!!!

Thanks,

mtbahs








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

    P0442 850 1997

    posted by  PBH on  Mon Jul 28 11:55 CST 2008
    Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
    last visit: Mon Jan 2 20:34 CST 2012
    [RELATED]

    I think this means the valve in the evap system is not operating. On my mercedes I just sprayed WD40 in the evap valve and it has worked ever since, or you have an evap leak.

    The fault will eventually clear itself if the repair is made, but not immediately. You need to clear the codes manually for that to happen.







<< < > >>



©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.