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 

rough idle...what am I missing? 850

posted by  will rehsper on  Mon Apr 28 15:25 CST 2008
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Tue Jul 3 14:55 CST 2012
[RELATED]

Since you seem to have tracked down all the likely culprits related to ignition and and induction (and I'm always quick to just to fuel anyways), I suggest investing in a fuel pressure gauge. --Perhaps we've already been though this, I apologize if that is so.

I got one at Autozone that does the trick. A schrader valve should be underneath the car in the line between the pump and filter in your '94. Also at the end of the fuel rail (by the vacuum tree) to check the function of the regulator. I've not seen system pressure numbers published, just volume/minute. If I recall correctly I have measured pressures in the range of 40psi at idle. Also have measured pressure fluctuations pogoing up and down between 20 and 80 psi due to a bad regulator. Never had much problem with idle though...

It's not just something silly like a bad spark plug causing a miss right?

-Will
--
850 / Mini






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.