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



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

roaming idle fixed by disconnecting battery, why did it work? 1990 244 200

posted by  transit wind on  Tue Aug 11 20:11 CST 2009
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Fri Aug 15 22:40 CST 2014
[RELATED]

Got this car that all of a sudden changed its idle. I replaced the AMM with a used out of the boneyard. Before the idle was high so but would be corrected with the AMM unplugged. Showing the car saturday (selling for my niece) and it ran fine including when I showed the AMM assumption. So monday morning first thing I got a 016 AMM out of a 740 and replaced it before starting the car. The car's idle wandered and ran weak. Revving the engine was met with a miss and poor response until I hit the higher RPMs and then it sort of fixed it self.

Today I unplugged the battery for 4 minutes and it seem to cure the problem. I checked the ECU and its the white label one. Not sure what to think. I've got a buyer but I don't want them to have any immediate challenges with the car. Anyone have some past experience with this?

The car threw out a code before I reset on the #2 socket. It had a 1-2-1. Guessing that was from not having the AMM plugged in. But would that confuse the computer?






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.