The message to which you are about to reply is shown first. GO TO REPLY FORM



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

check O2 sensor 700

posted by  Herb Goltz on  Mon Nov 29 03:14 CST 2004
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Fri Oct 24 13:23 CST 2014
[RELATED]

Hello Rick:

Get a cheap digital multimeter ($5 at Harbor Freight). Set the scale to 1V DC. Warm the car up well (normal operating temp). Then touch the spade connector on that green wire you describe with the red probe and touch the black one to a good ground underhood. If the sensor is good, you will see a fluctuation from .1 to .9V with a cycle something like once per second. If it stays pegged at either extreme, you have a problem. As they age they get lazy too-- sometimes the range will shrink quite a bit-- replacement is in order then too, but you probably aren't running so rich as to do your catalytic converter in. Given gas prices these days a new sensor will pay for itself pretty quickly, though...

Does the car have symptoms? Reduced mileage, black tailpipe, running hot?

Good luck!



--
Herb Goltz, London, Ontario, Canada '92 245 w/109K mi






USERNAME
Use "claim to be" below if you don't want to log in.
PASSWORD
I don't have an account. Sign me up.
CLAIM TO BE
Use only if you don't want to login (post anonymously).
ENTER CAPTCHA CODE
This is required for posting anonymously.
OPTIONS notify by email
Available only to user accounts.
SUBJECT
MODEL/YEAR
MESSAGE

DICTIONARY
LABEL(S) +
IMAGE URL *
[IMAGE LIBRARY (UPLOAD/SELECT)]

* = Field is optional.

+ = Enter space delimited labels for this post. An example entry: 240 muffler


©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.