Welcome to the North American Subaru Impreza Owners Club Tuesday July 25, 2017
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
Go Back   NASIOC > NASIOC Subaru Models > Legacy Forum

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads. 
Thread Tools Display Modes
Old 09-25-2010, 02:15 PM   #1
Scooby Newbie
Member#: 247820
Join Date: May 2010
Chapter/Region: NWIC
1992 Legacy Wagon

Default Idle switch/circuit trouble code on '92

My check engine light blinked a "42", which is a trouble code for idle switch or circuit. 1992 wagon, automatic. How/where can I check that out so I can solve the problem?
* Registered users of the site do not see these ads.
iamthelazerviking is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 09-27-2010, 11:45 AM   #2
Scooby Specialist
Member#: 32503
Join Date: Feb 2003
Chapter/Region: TXIC
Location: Johnson City, TX
2011 Tribeca
1995 Legacy Wagon


The idle control solenoid is a stepper motor that sits on the top of the intake manifold.
jey is offline   Reply With Quote
Old 09-27-2010, 12:32 PM   #3
Scooby Guru
Member#: 4800
Join Date: Mar 2001
Chapter/Region: TXIC
Location: Houston, Tx
1990 Legacy & 97 OBS


On the older cars, the idle switch is in the TPS.

Here's a copy & paste from my PM to you.

The idle switch is in the throttle position senser. Here's how to test/adjust the idle switch. If it doesn't adjust properly or you have problems afterwards, you may need to replace the TPS.


Legacy777 is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
P0519 trouble code on 2003 WRX mick_the_ginge Engine Management & Tuning 13 09-02-2010 07:17 PM
Error Code 0508 - Idle Control Circuit Low? MikeOliver Newbies & FAQs 0 07-27-2009 06:45 AM
Help with trouble code on 97 Leg. GT epike7915 Legacy Forum 5 04-13-2007 01:31 PM
TCM trouble code on 05 impreza metalsman Transmission (AT/MT) & Driveline 0 03-24-2006 01:12 PM
Trouble codes 22 & 42 on a BF Legacy GusS Legacy Forum 3 12-28-2001 02:56 PM

All times are GMT -4. The time now is 01:52 AM.

Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2017 Axivo Inc.
Copyright ©1999 - 2017, North American Subaru Impreza Owners Club, Inc.