Volvo AWD 850 Forum

INDEX FOR 10/2025(CURRENT) INDEX FOR 5/2007 850 INDEX

[<<]  [>>]


THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD




  REPLY TO THIS MESSAGE    PRINT   SAVE 

'97 850 won't pass emissions due to lack of data... help! 850 1997

posted by  buboes on  Sat Feb 11 05:37 CST 2006
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Sun Apr 19 06:08 CST 2009
[RELATED]

Hi,

my boyfriend's mom owns a '97 850 that has failed emissions twice due to a "not complete" result on the "non-continuous" monitor tests from the OBD. there missing data include: catalytic system, evap system, O2 sensor, and "overall readiness".
The car failed the same test a month or two ago, and the tech said that it was due to the battery being replaced recently. however, the car has been driven hundreds of miles since then, with the same incomplete test data results. i dont own a scanner, so i can only go by what the readout says. one curiousity is that the "continuous" test data i.e. misfire, fuel system, connector, and communication readings all pass as normal. the obd keeps sending back the result of "not ready" and incomplete. is there a particular weak point associated with this model/year, or perhaps the power is not routed correctly to the unit to keep its memory?? i have no clue. is anyone familiar with this problem? if so, please help!

sincerely,

carissa spatcher








  •   REPLY TO THIS MESSAGE    PRINT   SAVE 

    '97 850 won't pass emissions due to lack of data... help! 850 1997

    posted by  jthorner on  Tue Feb 14 14:35 CST 2006
    Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
    last visit: Mon Jan 4 04:02 CST 2010
    [RELATED]

    Is it a turbo 850? Some early OBDII Volvos have problems with the readiness tests. This is a complex deal invented by the EPA to try and solve the problem of people clearning trouble codes right before a smog test.

    There have been many articles written about these problems.

    See:

    http://lyberty.com/car/obd-issues.html

    http://www.smogcheck.ca.gov/ftp/pdfdocs/APPENDIX_J.pdf

    It could be worse, like the VW models where replacing the radio with an aftermarket unit can result in damaged scan tools!

    John







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

    '97 850 won't pass emissions due to lack of data... help! 850 1997

    posted by  KlausC on  Sun Feb 12 07:07 CST 2006
    Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
    last visit: Fri Oct 24 10:15 CST 2014
    [RELATED]

    I can't find the post, but someone implied that for 96&97 models, when you turn the car off, some of the codes are lost, not stored. Then when you drive, the ECU reposts them.
    Consensus, do not turn off the car when you get to the testing station.

    You might want to verify this with your local dealer, or Volvousa,

    Klaus
    --
    (V♂LV♂s 1975 164, 1995 854T, 1998 V70R)








  •   REPLY TO THIS MESSAGE    PRINT   SAVE 

    '97 850 won't pass emissions due to lack of data... help! 850 1997

    posted by  someone claiming to be bl on  Sat Feb 11 07:03 CST 2006 [RELATED]


    Did she get a CEL for any of the systems involved and have any repairs done recently? If so, there is a "drive cycle" associated with each OBD II code which is a certain milage/time that needs to pass after a repair and a code reset to prove the problem was actually corrected. This prevents one from simply resetting the CEL and running the car thru inspection. There is a link here somewhere that tells what the DC is for certain repairs. You can do a search or one of the other guys probably knows what it is.








    •   REPLY TO THIS MESSAGE    PRINT   SAVE 

      Here is the Readiness Drive Cycle for passing Emissions 850 1997

      posted by  MadeInJapan on  Sun Feb 12 03:25 CST 2006
      Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
      last visit: Sat Oct 2 06:34 CST 2010
      [RELATED]

      Hopefully this will help. This is the driver's readiness spoken about earlier. Do 2 of these drive cycles.
      --
      1998 S70 T5 Emarald Green Metallic, 2004 V70 2.5T Ruby Red, Previous Owner of Black '94 850 Turbo Wagon. My cars have been running so well lately they've got me worried.









      •   REPLY TO THIS MESSAGE    PRINT   SAVE 

        Here is the Readiness Drive Cycle for passing Emissions 850 1997

        posted by  Rule 308 on  Mon Feb 13 08:59 CST 2006
        Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
        last visit: Tue May 8 09:20 CST 2012
        [RELATED]

        Some of the earlier cars will reset the monitors everytime you shut the car off so it can be a major pain in the rear to get one through smog. You can try doing a couple of drive cycles in it to get it to reset the monitors but if you have already driven it a couple of hundred miles and they have not reset I would say that the odds are against it, but still give it a try anyhow as you have nothing to loose. You have to have all but two of the monitors up currently. So regardless of how many your particular car has you need to have all but two of them up to pass that part of the test, at least here in So. Cal that is the way it is. If your monitors will not set then you need to take it for a long drive and then bring it in for a smog and do not shut the vehicle off until it is performed. I had one of these last week and that was exactly what was needed.

        Mark







<< < > >>



©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.