Volvo RWD 200 Forum

INDEX FOR 1/2026(CURRENT) INDEX FOR 4/2005 200 INDEX

[<<]  [>>]


 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

smoother idle when o2 sensor unplugged! 200

posted by  jonnyH on  Fri Nov 16 17:04 CST 2007
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Tue Mar 2 07:22 CST 2010
[RELATED]

hey there brickers!
you guys always help me out, so here's a new one for you:
my idle is slightly rough, it sounds like it's stumbling just a touch every second or two. so i was poking around under the hood looking for vacuum leaks (i didn't find any), and i unplugged the o2 sensor to check the voltage on it (which seems a tad out of range, but just barely.)
when i unplugged it, the engine immediately began to idle much more smoothly. it's a one wire universal bosch sensor i spliced in. when i reattached the lead, it began to stumble again.
why would it run more smoothly with no signal from the o2 sensor? should i try another? i've cleaned my throttle body, checked for vacuum leaks, all the stuff i'm supposed to do according to the 700/900 FAQ.
tomorrow i'm gonna clean the iac and see if that helps out at all.
thanks for your input to make olga a better car!
jonathan






THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD

New smoother idle when o2 sensor unplugged! [200]
posted by  jonnyH  on Fri Nov 16 17:04 CST 2007 >


<< < > >>



©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.