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



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

D-Jetronic problems 140-160

uid 4846's pic
posted by  JohnMc on  Tue Aug 23 05:40 CST 2005
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Thu Oct 23 07:42 CST 2014
[RELATED]

To the best of my knowledge, yes. The little rheostat switch built into the case, usually with paint 'sealing' the original setting. Apparently the canned fuel map wasn't precise enough to pass emission tests when teamed with a motor exhibiting various production variances, so each car needed to be hand tuned on the line.

One set of contacts clsoes in the throttle switch as the throttle opens, to make the accelerator pump action only happen when the throttle is opening - they open (due to a sort of friction action) as the throttle closes so the contacts sliding over the saw-tooth pattern do not send signals.

The other set of contacts closes right as the throttle closes completely. Often times there is a slight stumble as these contacts open or close.
--
I'm JohnMc, and I approved this message.






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.