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 

Re: B21 K-jet woes... 200 81

posted by  someone claiming to be John Fraser on  Sat Jun 30 11:25 CST 2001 [RELATED]

I'm wrong, Jim is right. The freq. valve can make a big differance if the valve itself is full on or full off. I was thinking of the "limp home" mode which the system goes into if the O2 sensor fails.

A idea hear, if the valve's duty cycle is so far off that it is affecting drivability perhaps disconnecting the O2 sensor's lead would help. This should put the system into the 50% duty cycle limp home mode. In this mode it should not affect driveability. To verify the duty cycle, check the voltage at the system test point. This is located near the system relay on the left fender. It is just a single wire hanging out of the harness with a single pin connector on it but nothing pluged in. If the valve is operating at full on or full off you will see 12V. or 1V. approx. respectively.





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.