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



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

RPM at idle 200 1981

posted by  B.B. on  Sun Jan 21 12:50 CST 2024
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Mon Oct 6 13:15 CST 2014
[RELATED]

Hi Resunoiz,

I'm surprised that no one has answered you, perhaps they are busy watching playoff football.

I have no almost no experience with 240 but did save 240 service manuals while searching for a wiring diagram for my 1993 940.

It seems the B19A is a rare engine, available in either 90 or 97HP.
What is the 2-digit engine code in your VIN number?
From the manuals I looked at you have the "CI" system and NOT "CIS".

The CI system has an "auxiliary air valve" that increases engine speed during warm up.
It should have a number stamped on it: 0 280 140 ...
If it doesn't completely shut you will suffer high RPMs.

This valve is located between the airflow sensor and the cold start injector.
It contains a bi metallic spring which is heated to 70C to fully close it.If you have this valve, check that you have 12 volts to the connector when the engine is cold, and that the valve is closing properly. Put your ohmmeter on the valve
connector and expect to see some heater coil resistance and NOT an open connection.

Provide your email link and I can send you the info.

Bill






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.