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



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

Cold Start Injector 1800 1970

uid 4846's pic
posted by  JohnMc on  Mon Jul 19 03:17 CST 2004
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Thu Oct 23 07:42 CST 2014
[RELATED]

Here's a bit of ill informed theorizing, take it for what it's worth. I think the very early production B20E engines used a different cold start system. The logic was built into the computer, and the computer turned the valve on and off as it saw fit like just like an injector. This meant that the valve ran on 3 volts (or whatever the lower voltage is that the injectors use). After a little while, they removed that function from the computer and instead just used a more direct wiring scheme - with a wire from the starter to a temp switch on the side of the block (above the oil filter) and straight on to the cold start valve - so it would open when cranking with the engine cold. And thus the later model valves operate on 12 volts. I would suspect a later model 12 volt valve woudn't open if it got 3 volts from the computer, and I don't know if it would do anything bad to the computer or not (draw too much current perhaps?).
--
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.