Welcome to the North American Subaru Impreza Owners Club Sunday July 13, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Technical > Service & Maintenance

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.
Reply
 
Thread Tools Display Modes
Old 01-03-2002, 09:35 PM   #1
minx
Scooby Newbie
 
Member#: 13279
Join Date: Dec 2001
Location: Eastside, WA & www.rs25.com
Vehicle:
1999 Impreza 2.5 RS
Silverthorn Metallic

Exclamation Help! CEL On after Spark Plug change

There was a crack in my #4 plug and this was causing a spark from #4 to the neares bolt. This of course caused an RPM dump. The CEL came on blinking, then off, then on steady. Still on.

SO I got replacement plugs from dealership and replaced them. CEL still on. Help!


What do I need to do? Besides taking to dealership??

How do I reset the computer? Do you know what is up?

I'm desperate.

Reminder I have MY99 RS.

MINX
* Registered users of the site do not see these ads.
minx is offline   Reply With Quote
Old 01-04-2002, 01:24 AM   #2
CosmoTheCat
Scooby Newbie
 
Member#: 3409
Join Date: Jan 2001
Chapter/Region: NWIC
Location: Woolley
Vehicle:
1998 Ram 2500
Green.

Default

If you search on ECU Reset you'll find a lot of info.

basically, unhook the battery and leave it for 30 minutes or so, then hook it up, start the car without touching the gas, and let it idle for a while, then shut it off, then go for a drive. That's just off the top of my head though, I haven't done one for months. You might want to verify it first.
CosmoTheCat is offline   Reply With Quote
Old 01-04-2002, 10:58 AM   #3
tmat3
Scooby Specialist
 
Member#: 2817
Join Date: Nov 2000
Location: NYC and Troy, NY
Vehicle:
2001 Impreza 2.5RS
BRP

Default

The CEL won't go away until you clear the code, or ECU decides that the code isn't necessary any more.

Unhook the ground terminal of the battery for at least 1/2 hour, and let the ECU reset itself. If you have a OBD-II scanner available, it takes less than 2 seconds to clear the ECU.

If you replaced the plugs with new ones, and reset the ECU, then CEL should disappear.
tmat3 is offline   Reply With Quote
Old 01-07-2002, 11:05 AM   #4
minx
Scooby Newbie
 
Member#: 13279
Join Date: Dec 2001
Location: Eastside, WA & www.rs25.com
Vehicle:
1999 Impreza 2.5 RS
Silverthorn Metallic

Default

You rock! I'll give it a whirl tonight.


Thanks again, both a ya's. ;-)

Brandee
minx is offline   Reply With Quote
Old 01-07-2002, 10:49 PM   #5
DARTH SkyyWALLker
Scooby Newbie
 
Member#: 13986
Join Date: Jan 2002
Vehicle:
1999 2.5 RS
black mica pearl

Default

You didn't mention whether or not you checked the plug wires, so I'll assume that you didn't. If so...

Take it off, and check the inside. If the metal ring is broken or sooty, it's the wire.
If it is, and it's your #4 wire, then you'll have to turn around, stick your hand in there (at the fat end of the plug, I forget what it's called) and yank as hard as you can, 'cause 'yer gonna haz ta 'wrastle it out of there (if it's fried to the inside of the engine).
Not fun, but I had to do it twice. I replaced my plug wire set completely after 2 1/2 years.
DARTH SkyyWALLker is offline   Reply With Quote
Old 01-08-2002, 05:33 AM   #6
DARTH SkyyWALLker
Scooby Newbie
 
Member#: 13986
Join Date: Jan 2002
Vehicle:
1999 2.5 RS
black mica pearl

Default

You didn't mention whether or not you checked the plug wires, so I'll assume that you didn't. If so...

Take it off, and check the inside. If the metal ring is broken or sooty, it's the wire.
If it is, and it's your #4 wire, then you'll have to turn around, stick your hand in there (at the fat end of the plug, I forget what it's called) and yank as hard as you can, 'cause 'yer gonna haz ta 'wrastle it out of there (if it's fried to the inside of the engine).
Not fun, but I had to do it twice. I replaced my plug wire set completely after 2 1/2 years.
DARTH SkyyWALLker is offline   Reply With Quote
Reply

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
Boost issue after spark plug change ajp11 Factory 2.5L Turbo Powertrain 4 11-30-2008 08:18 PM
Crappy Gas Mileage After Spark Plug Change Dutchman1101 Factory 2.0L Turbo Powertrain 6 10-14-2008 07:06 PM
Misfiring after spark plug change Nuke209 Factory 2.5L Turbo Powertrain 19 04-29-2007 06:12 PM
Oil temps after Spark-plug change AmolaitoPR Factory 2.5L Turbo Powertrain 5 07-08-2006 11:27 PM
Starting problems after spark plug change ggergg Normally Aspirated Powertrain 7 09-03-2004 08:25 AM


All times are GMT -4. The time now is 08:03 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.