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 

Function of Radio Suppression relay? 700

uid 18083's pic
posted by  lucid on  Mon Oct 31 00:35 CST 2005
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Fri Oct 24 12:31 CST 2014
[RELATED]

"The primary ignition circuits can be eliminated as a culprit if you can see the tach moving slightly during no start cranking, this means ignition pulses are getting to the coil negative terminal. These pulses arrive there via the power stage and are also supplied to the tach."

Runwld doesn't give us the year of his car, but if it has the Regina FI as many/most of the late 80s and early 90s 700/900 cars do, this tip may not apply.

Seeing this tip often posted, I was curious about it and tried it on my '93 940 Regina car. I induced "no start cranking" by pulling the fuel relay. There was no flickering of the tach needle at all when I cranked it over.

AFAIK, pulling the Regina fuel relay should not affect the REX ignition, but would merely simulate an inoperative relay.

BTW (off-topic), I agree that cold starting and cold running are not the same. Some just want their misinformed opinions confirmed it seems.
--
Bruce Young
'93 940-NA (current), 240s (one V8), 140s, 122s, since '63.






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.