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 

modifying 740 cpu 700 1989

Coolant temperature sending unit or a wiring problem in between it and the cpu. It would be much easier to fix that than go and modifiy the cpu (trust me)
There are two temp sensors on the car, one towards the front of the engine thats for the temp gauge, and one way in the back under the intake thats for the car itself. if it runs ok after the car has warmed up, its still a temp sending unit.
another halfway fix for this is to take it out of the equation.
My friend did this by bypassing it and running a manual control for the cold-start injector, so now he has a button on his dash that ya hafta push to get the car running(and keep it running)






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.