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



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

Runs, but not driveable...low power 1989 740 700 1989

posted by  bobp on  Wed Apr 17 07:07 CST 2002
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS] [RELATED]

1989 740 230f engine. The car has a myriad of problems, but the main problem is that it drives as though it is not getting enough fuel. It feels as though it is running on two cylinders. It idles normally.

Tests I've done:

I pulled the fuel injectors to make sure that that are spraying properly. I have a SunPro tester. I also tested the harnesses to check that they are ok. This test was done during idle.

Spark: At idle I'm getting spark on all cylinders.

I've checked and cleaned several ground connection. Still have to check others.

This year does not have a Hall sensor in the distributor or any wires that could be loose.

Could it be the RPM sensor?

Other problems:
The car does not want to start easily for the first time of the day during cold temperatures. It takes about ten key clicks to get enough gas into it. When it is warm, it starts fine. Could be the ECT sensor. The fuel pressure is fine.

The electric cooling fan never engages when the engine is hot. I cleaned all the connections to it and ensured that the wires have no breaks with a tester. I applied 12 volts to the fan, and it works ok.

I'm going to clean the connectors on the comb connections going to the ECU.
Any Advice?
Bob Pietrs





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.