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



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

Ruff Running 1800ES 1800

uid 4846's pic
posted by  JohnMc on  Tue Apr 8 08:07 CST 2003
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Thu Oct 23 07:42 CST 2014
[RELATED]

As far as I know, air leaks don't throw off the D-jet system, as it never measures air moving through a certain point (like almost all later style systems do in some fashion). So there is no measuring point that is bypassed by a leak. It just measures the manifold pressure, which is the grand total effect of all vaccum leaks plus the throttle opening, cold air valve, and idle bypass. Generaly a vacuum leak will just make the idle fast, and you won't be able to get it down with the idle adjustment.


Do some diagnostics on your FI system. Luckily, the D-Jet is about as simple as electrical FI systems can get - there aren't many gadgets to check, and they can all be checked easily with a multimeter.

Just as a guess, if your problems are caused by the FI system (and not ignition or mechanical problems) then I'd guess the fuel pressure regulator is flaking (psi should ALWAYS be 28 psi) or the Manifold Air Pressure sensor if going out.





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.