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 

OBD-1 code interpretation question (ignitiion system) '2-2-4' , '1-4-4' 900 1994

posted by  jim e on  Wed May 14 07:03 CST 2008
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Wed Jun 29 14:37 CST 2011
[RELATED]

My wife's 945 turbo (140K miles) occasionally stumbles and looses power momentarily. This has just started happening in the last month. I read two codes from socket 6:
2-2-4: 'coolant temperature sensor fault. Control unit assumes engine is at 60 degrees C (140 degrees F)
1-4-4: 'load signal missing (from LH control unit). Control unit assumes the engine is at full load.

My question is about whether one of these problems is likely trigger the other code. For example, if my coolant temp sensor is faulty, is it likely to cause the LH control unit to not operate properly, thereby causing the 1-4-4 code.

The FAQ states the causes of the 1-4-4 code as: bad fuel injection relay; faulty wiring from LH to EZK; bad LH module.

The causes of the 2-2-4 code are: faulty wiring or engine coolant temp sensor.

Both the fuel injection relay and coolant temp sensor are easy to replace, and I will do that. If I have a bad LH module, where is that located? Is that the one behind the kick panel on the passenger side footwell?
Also what is the EZK, and where is it located?

Thanks in advance for any input.
--
Jim Egelston - Seattle - '81 245DL, '85 244GL, '89 744GL, '94 945T, '89 535i, '74 R90S






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.