Volvo AWD 850 Forum

INDEX FOR 10/2025(CURRENT) INDEX FOR 7/2015 850 INDEX

[<<]  [>>]


 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

Chk Eng code takes longer to re-appear w/ cold eng? + O2 sensor 850 1995

posted by  Rockytop on  Thu Mar 5 04:53 CST 2009
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Tue May 10 13:59 CST 2011
[RELATED]

When cleared, fault code 1-1-3 (short term lean) re-appeared at 10 min of gentle idling from cold engine. Then, I cleared it and immediately restarted engine. CEL appeared at exactly 3:20, two times in a row.
Generally, idle is stable but occasionally drifts up to 1200-1300 then back down. The engine, though, doesn't seem to sound right during idle. Normal performance while driving.
1) I think I have a vacuum leak on pass.side of intake manifold gasket. How common is that?
2) Any tips on the replacement job?
3) Anything else that should be replaced while I'm "in there?" (other than Fuel Inj. o-rings)
4) BTW, is it possible to take a voltage reading of oxygen sensor with it totally disconnected from harness? I thought that sensor output voltage would be the same with and without any power from harness, but I don't see anywhere that suggests I can test sensor disconnected. (I want it disconnected b/c I don't want to "backprobe" w/ such tiny voltages!)
--
Two 1995 854 GLT's (w/ manual transmissions)






THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD

New Chk Eng code takes longer to re-appear w/ cold eng? + O2 sensor [850][1995]
posted by  Rockytop  on Thu Mar 5 04:53 CST 2009 >


<< < > >>



©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.