Volvo AWD 850 Forum

INDEX FOR 10/2025(CURRENT) INDEX FOR 8/2010 850 INDEX

[<<]  [>>]


THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD




  REPLY TO THIS MESSAGE    PRINT   SAVE 

codes p0001, p0002, p0003 and a dead o2 sensor 850

posted by  vesparally on  Thu Jan 26 14:08 CST 2012
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Tue Oct 21 18:11 CST 2014
[RELATED]

'97 volvo 850 NA 149,000 miles

p0001 : fuel volume regulator control circuit / open

p0002 : fuel volume regulator control range/performance

p0003 : fuel volume regulator control circuit low

Oxygen sensor dead. voltage varies between .455/.470v

ordered new o2 sensor, will install soon.

What piece of hardware do the above codes refer to.
fuel pressure regulator ?? computer control ??
car is getting bad fuel mileage (14-15mpg) have not had a chance to pull the spark plugs yet to confirm but feel the car is running rich

roll on
Peter








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

    codes p0001, p0002, p0003 and a dead o2 sensor 850

    posted by  B.B. on  Wed Feb 1 20:16 CST 2012
    Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
    last visit: Mon Oct 6 13:15 CST 2014
    [RELATED]

    Someone once told me that new plugs are 90% of a tuneup.
    When the car runs like crap do a tuneup first.








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

    codes p0001, p0002, p0003 and a dead o2 sensor 850

    posted by  KlausC on  Thu Jan 26 15:58 CST 2012
    Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
    last visit: Fri Oct 24 10:15 CST 2014
    [RELATED]

    I am totally confused. The 850 doesn't have a 'fuel volume regulator'. Are you sure your code reader was set for Volvo/Ford?

    Klaus
    --
    There is no present time, just the past and future








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

    codes p0001, p0002, p0003 and a dead o2 sensor 850

    posted by  Herb Goltz on  Thu Jan 26 14:53 CST 2012
    Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
    last visit: Fri Oct 24 13:23 CST 2014
    [RELATED]

    I'm not sure about your codes, but I'm guessing they are referring to your fuel pressure regulator. Pull the vacuum line off and see if there is fuel in it, or measure your fuel pressure at the rail. Others may chime in here-- my experience with this is limited to RWD Volvos...

    There's a very good chance that your 02 sensor is fine and is just telling the truth about how much 02 it is seeing...








    •   REPLY TO THIS MESSAGE    PRINT   SAVE 

      codes p0001, p0002, p0003 and a dead o2 sensor 850

      posted by  vesparally on  Tue Jan 31 18:30 CST 2012
      Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
      last visit: Tue Oct 21 18:11 CST 2014
      [RELATED]

      I'm not sure about those codes either since the fuel pressure regulator is a mechanical device not electrical. Changed the dead oxygen sensor (which was covered in heavy black soot)for a new OEM style one. Will get around to measuring the fuel pressure someday soon.
      Waiting to see what happens to the fuel mileage for now.

      roll on
      Peter







<< < > >>



©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.