Volvo AWD 850 Forum

INDEX FOR 10/2025(CURRENT) INDEX FOR 4/2003 850 INDEX

[<<]  [>>]


THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD




  REPLY TO THIS MESSAGE    PRINT   SAVE 

O2 replacement questions 850 1997

uid 8162's pic
posted by  Kyle242GT on  Tue Aug 10 10:06 CST 2004
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS] [RELATED]

From http://www.volvospeed.com/Repair/O2sensor2.htm
Have your radio code handy and disconnect your battery ground for 10 minutes or so to reset fuel adaptives. Reconnect battery ground, set radio code, clock time and you are done.

Got a problem with that - we don't have the radio code! Is disconnecting the battery necessary?

Also, would you use a $90 Walker brand O2 over a $120 Bosch one?

Lastly, my parts supplier says he's never heard of this: The new sensor has an added wiring harness/connector. This extra section of wiring is to help keep reference wires from clogging up with various engine deposits over time. When purchasing a new sensor be sure to clarify "turbo" or 'Non-turbo". When you get the new sensor make sure you have the extra wiring harness (it should be connected)

Any comments on that? I'm told that most dealers and shops don't bother with the additional wiring.

Thanks!

--
Kyle
Santa Rosa, CA

1980 242GT 198K
1990 744Ti 115K
1972 Riviera 130K
1972 240Z 1K (since restoration)
1972 Datsun Pickup 87K(187K?)







  •   REPLY TO THIS MESSAGE    PRINT   SAVE 

    O2 replacement questions 850 1997

    posted by  someone claiming to be punkjones on  Tue Aug 10 11:23 CST 2004 [RELATED]

    Is your car a wagon? Our radio code is written on the inside of the rear liftgate door (drivers side) visable when the door is up. The PO didn't write it there and looks like it was done at the factory but maybe not. You might look around there or maybe inside the trunk on a sedan.

    Go with the Bosch sensor and make certain is is the right one for your engine. After market sensors often generate low voltage. Don't know why the additional wiring harness on the 97. Check FCPGroten's site and read the explanation under O2 sensors.

    pj







<< < > >>



©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.