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



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

93 940 w/ Regina keeps tripping Check Engine light for knock sensor code 143 900

posted by  dinomartino on  Fri Jan 28 07:53 CST 2011
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Fri Oct 24 04:43 CST 2014
[RELATED]

Give it some time before declaring it fixed. My 1993 940 has the same chronic fault. I've been able to significantly reduce it, but every once in a while (always in summer) I'll start it up and the system is audibly on full retard, and a short time later on comes the light with a 1-4-3 code.

I have contemplated installing a new (shielded) wire directly from knock sensor to the main connector on the REX, and taking the existing wire out of service. Opening up the harness and trying to separate the wires is clearly madness.

john
--
1989 245 233K / 1993 945 127K






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.