Welcome to the North American Subaru Impreza Owners Club Tuesday March 19, 2024
Home Forums Images WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC General > Warranty Issues & SOA Problems

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.







* As an Amazon Associate I earn from qualifying purchases. 
* Registered users of the site do not see these ads. 
Reply
 
Thread Tools Display Modes
Old 01-21-2002, 10:05 PM   #1
Kenneth2000
Scooby Newbie
 
Member#: 6375
Join Date: May 2001
Location: Omaha, NE
Vehicle:
2004 STi
Java Black Pearl

Default P1312 - Exhaust Temp. Sensor Malfunction

I just pulled this code from my car.....(2002 WRX)

Does this typically mean that the O2 sensor is screwed? Maybe we goofed it up putting in the new up-pipe & downpipe? (installed them 10 days ago)

Any thoughts? Should I just order a new OEM 02 sensor?

Last edited by Kenneth2000; 01-21-2002 at 10:12 PM.
Kenneth2000 is offline   Reply With Quote
Old 01-22-2002, 09:06 AM   #2
Jon [in CT]
*** Banned ***
 
Member#: 2992
Join Date: Nov 2000
Chapter/Region: NESIC
Location: Connecticut, USA
Vehicle:
02 WRX Sedan
Silver

Default

Check again to make sure their aren't additional trouble codes stored, like P0545, P0546 or P1544. If P1312 was the only code stored, then you'll have to replace the EGT sensor (NOT the O2 sensor) which is located on the uppipe.
Jon [in CT] is offline   Reply With Quote
Old 03-18-2002, 10:46 PM   #3
krex
Scooby Newbie
 
Member#: 14343
Join Date: Jan 2002
Location: D/FW, TX
Question egt sensor malfunction

i am interested in how this was handled. i have an aftermarket uppipe and downpipe as well, and my egt has decided to quit?
krex is offline   Reply With Quote
Old 03-19-2002, 06:51 PM   #4
WRXSTi69
Scooby Newbie
 
Member#: 12012
Join Date: Nov 2001
Default Re: P1312 - Exhaust Temp. Sensor Malfunction

Quote:
Originally posted by Kenneth2000
I just pulled this code from my car.....(2002 WRX)

Does this typically mean that the O2 sensor is screwed? Maybe we goofed it up putting in the new up-pipe & downpipe? (installed them 10 days ago)

Any thoughts? Should I just order a new OEM 02 sensor?
Your aftermarket up/downpipes are causing higher than normal exhaust temps, that cooked the sensor. Just hope they're not also causing a lean condition as well, or pistons will be next.
WRXSTi69 is offline   Reply With Quote
Old 03-19-2002, 07:30 PM   #5
Jon [in CT]
*** Banned ***
 
Member#: 2992
Join Date: Nov 2000
Chapter/Region: NESIC
Location: Connecticut, USA
Vehicle:
02 WRX Sedan
Silver

Default

I happen to subscribe to the theory that the EGT sensor mounting bungs used by most aftermarket uppipes do not allow the sensor to seat properly. This leads, according to my theory, to either a loose sensor or to sensor damage. There probably was a reason why the Service Manual cautioned that the EGT sensor must be oriented in a particular way in the OEM uppipe.
Jon [in CT] is offline   Reply With Quote
Old 03-19-2002, 11:17 PM   #6
Greenracer6
Scooby Specialist
 
Member#: 7962
Join Date: Jul 2001
Chapter/Region: MWSOC
Location: Louisville KY
Vehicle:
08 335i TwinTurbo
PSM 02WRX, 97 Dipped CRV

Default egt sensor

My stock sensor went bad and caused my car to be a paper weight. I finally made SUbaru change the egt probe at MY expense and that solved the problem. $80, then install ed by Subaru only.

This is upseting of coarse.
Greenracer6 is offline   Reply With Quote
Old 04-04-2012, 12:12 PM   #7
rotheee
Scooby Newbie
 
Member#: 291964
Join Date: Aug 2011
Location: Frankfort, Ohio
Vehicle:
2011 WRX
WRB

Default

Quote:
I happen to subscribe to the theory that the EGT sensor mounting bungs used by most aftermarket uppipes do not allow the sensor to seat properly. This leads, according to my theory, to either a loose sensor or to sensor damage. There probably was a reason why the Service Manual cautioned that the EGT sensor must be oriented in a particular way in the OEM uppipe.
So does anyone know for a fact that the probe needs to be oriented a certain way? And if so, what way does it need to be put in?


I need help! I believe this is why my car is stuck in limp mode. Just ordered a new OEM EGT probe for it, will be in soon.
rotheee is offline   Reply With Quote
Old 08-31-2012, 12:03 PM   #8
ToddMcF2002
Scooby Specialist
 
Member#: 135007
Join Date: Dec 2006
Location: Plymouth, MA
Vehicle:
2014 STi Hatch
Crystal Black Silica

Default

Question: I have a megan downpipe and a stock uppipe with the EGT, and a p1312. Should I do the resistor mod or replace the EGT? Thanks for any advice...
ToddMcF2002 is offline   Reply With Quote
Old 08-31-2012, 03:34 PM   #9
ToddMcF2002
Scooby Specialist
 
Member#: 135007
Join Date: Dec 2006
Location: Plymouth, MA
Vehicle:
2014 STi Hatch
Crystal Black Silica

Default

OK so I went and did the resistor mod and after driving for about a half hour the code was still on so I cleared the ECU. I drove another half hour and so far no code... but I've been fooled before
ToddMcF2002 is offline   Reply With Quote
Old 08-31-2012, 11:24 PM   #10
ToddMcF2002
Scooby Specialist
 
Member#: 135007
Join Date: Dec 2006
Location: Plymouth, MA
Vehicle:
2014 STi Hatch
Crystal Black Silica

Default

I enjoy talking to myself I guess. Maybe it will help someone some day... 70 miles and no cell. Should I get my hopes up? Hard to believe $1.20 in resistors can fix something
ToddMcF2002 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
exhaust temperature sensor malfunction andrew3776 AccessPort 1 07-31-2008 08:55 AM
how to change exhaust temp sensor? scritchy Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 8 02-05-2007 08:36 PM
P1312 Exhaust temperature sensor malfunction NorCalEnthu Service & Maintenance 1 08-25-2005 12:42 PM
Exhaust Temp sensor on JDM up pipe savageblitz Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 2 01-17-2005 09:08 AM
stock exhaust temp sensor wRx137 Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 1 01-16-2003 09:21 AM

All times are GMT -4. The time now is 03:59 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2024 Axivo Inc.
Copyright ©1999 - 2019, North American Subaru Impreza Owners Club, Inc.

As an Amazon Associate I earn from qualifying purchases.

When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission
Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.