Welcome to the North American Subaru Impreza Owners Club Wednesday November 22, 2017
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC Technical > Electrical & Lighting

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 11-05-2017, 09:40 PM   #1
MO REX
Scooby Newbie
 
Member#: 52583
Join Date: Jan 2004
Chapter/Region: MWSOC
Location: St. Louis MO
Vehicle:
2002 WRX sedan
PSM

Default Omori egt probe

I have an Omori egt gauge that needs a new probe. Do any of you know of a probe that will plug into my gauge? Iíve done quite a bit of searching with no luck. I really dont want to buy a new gauge and would like to get this one working again. Just did an ej207 swap and would feel alot better knowing what egtís Iím running.

Also willing to splice into the Omori harness if nothing will plug and play. Iím guessing I could figure out how its wired by doing a continuity test.


Thanks
* Registered users of the site do not see these ads.
MO REX is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 11-06-2017, 01:26 PM   #2
car_freak85
Scooby Specialist
 
Member#: 13530
Join Date: Dec 2001
Chapter/Region: NWIC
Location: Cascadia
Vehicle:
EA63 , EA81T, EJ20G,
EJ205

Default

I haven't got my gauge working again, but I can give you the specs of the replacement probe I bought.
car_freak85 is online now   Reply With Quote
Old 11-06-2017, 02:14 PM   #3
MO REX
Scooby Newbie
 
Member#: 52583
Join Date: Jan 2004
Chapter/Region: MWSOC
Location: St. Louis MO
Vehicle:
2002 WRX sedan
PSM

Default

That would be great. I assume you have an Omori egt gauge and the new probe you ordered is supposed to plug right in.

Thanks
MO REX is offline   Reply With Quote
Old 11-07-2017, 01:03 PM   #4
car_freak85
Scooby Specialist
 
Member#: 13530
Join Date: Dec 2001
Chapter/Region: NWIC
Location: Cascadia
Vehicle:
EA63 , EA81T, EJ20G,
EJ205

Default

Didn't get around to looking it up last night, my bad. It is an aftermarket probe.
car_freak85 is online now   Reply With Quote
Old 11-07-2017, 03:02 PM   #5
Charlie-III
NASIOC Supporter
 
Member#: 30669
Join Date: Dec 2002
Chapter/Region: Tri-State
Location: USA, North NJ, 07456
Vehicle:
1998 Legacy 2.5GT
Silver Sleeper BK, 5MT

Default

Most EGT's I've seen use a standard "K" or "J" type thermocouple, maybe with some oddball connector on it.
Very common device (the thermocouple) in industrial applications.

McMasterCarr has many types in stock, if you read the Omori unit specs, you may figure out which type thermocouple you need, then look on MC and see what they have.
Yes, the wires are color coded, typically a common standard as it's not worth the money to make a special.
Charlie-III is offline   Reply With Quote
Old 11-11-2017, 12:05 AM   #6
MO REX
Scooby Newbie
 
Member#: 52583
Join Date: Jan 2004
Chapter/Region: MWSOC
Location: St. Louis MO
Vehicle:
2002 WRX sedan
PSM

Default

Quote:
Originally Posted by Charlie-III View Post
Most EGT's I've seen use a standard "K" or "J" type thermocouple, maybe with some oddball connector on it.
Very common device (the thermocouple) in industrial applications.

McMasterCarr has many types in stock, if you read the Omori unit specs, you may figure out which type thermocouple you need, then look on MC and see what they have.
Yes, the wires are color coded, typically a common standard as it's not worth the money to make a special.
Thanks for the heads up. Finding any info on my gauge has been extremely difficult. You cannot buy them here in the states anymore. For all I know Omori went out of business. I bought them from j-spec tuning a long time ago and their website doesnít list any contact info anymore. Iíll research the difference between k and j type thermocouples and see if I can figure it out. Iíve been extremely busy so finding time has been a challenge.

Thanks for the info
MO REX is offline   Reply With Quote
Old 11-11-2017, 12:32 AM   #7
MO REX
Scooby Newbie
 
Member#: 52583
Join Date: Jan 2004
Chapter/Region: MWSOC
Location: St. Louis MO
Vehicle:
2002 WRX sedan
PSM

Default

The gauge reads up to 2,200 degrees f so I’m guessing it’s a k type since a j type only reads up to 1,400 and a k reads to 2,300.

I did find a thread on an evo forum and a guy claimed that an Omori probe will work on a Greddy egt gauge. If it’s on the internet it must be right. Right? I’d just hate to hack the wiring on one of these probes just to find out it won’t work. I’m not a big fan of throwing money away.
MO REX is offline   Reply With Quote
Old 11-11-2017, 03:40 PM   #8
Charlie-III
NASIOC Supporter
 
Member#: 30669
Join Date: Dec 2002
Chapter/Region: Tri-State
Location: USA, North NJ, 07456
Vehicle:
1998 Legacy 2.5GT
Silver Sleeper BK, 5MT

Default

Quote:
Originally Posted by MO REX View Post
The gauge reads up to 2,200 degrees f so Iím guessing itís a k type since a j type only reads up to 1,400 and a k reads to 2,300.

I did find a thread on an evo forum and a guy claimed that an Omori probe will work on a Greddy egt gauge. If itís on the internet it must be right. Right? Iíd just hate to hack the wiring on one of these probes just to find out it wonít work. Iím not a big fan of throwing money away.
It's on the Internet that Al Gore invented, thus it must be correct.

[/sarcasm]

Found several Internet threads that say Greddy uses the same hardware.
They also tend to show a K type thermocouple.

Possible source..... http://thesensorconnection.com/egt-p..._fitting.shtml

Research, don't take my word for it. I am sorta basing on using thermocouples in industrial environments and the current application.

Just my thoughts.
Charlie-III is offline   Reply With Quote
Old 11-11-2017, 08:27 PM   #9
MO REX
Scooby Newbie
 
Member#: 52583
Join Date: Jan 2004
Chapter/Region: MWSOC
Location: St. Louis MO
Vehicle:
2002 WRX sedan
PSM

Default

Quote:
Originally Posted by Charlie-III View Post
It's on the Internet that Al Gore invented, thus it must be correct.

[/sarcasm]

Found several Internet threads that say Greddy uses the same hardware.
They also tend to show a K type thermocouple.

Possible source..... http://thesensorconnection.com/egt-p..._fitting.shtml

Research, don't take my word for it. I am sorta basing on using thermocouples in industrial environments and the current application.

Just my thoughts.
I really appreciate you taking the time to help out. The info you gave me was very helpful. Didn’t know anything about j or k type thermocouples and still have an extremely limited amount of knowledge on them. Ive been busy trying to figure this out here and also posting on jeepforum about an ecu issue Im having on my TJ. I think I will just order the one you linked, break out the weller and heat gun and solder/heat shrink it to the Omoni.


Will either type work with any egt gauge or do they send a different signal or something? Just wondering if there are other differences between the two other than temperature range.
MO REX is offline   Reply With Quote
Old 11-11-2017, 11:00 PM   #10
Charlie-III
NASIOC Supporter
 
Member#: 30669
Join Date: Dec 2002
Chapter/Region: Tri-State
Location: USA, North NJ, 07456
Vehicle:
1998 Legacy 2.5GT
Silver Sleeper BK, 5MT

Default

In general, no, you can't just swap a J or K, the delivered voltage vs. temp (thermocouples generate a voltage based on the sensed temp).
So, you need the correct type for the rest of the system.

Like I said before, I used thermocouples in industrial heating applications as well as EGT's in powered aircraft.
Charlie-III is offline   Reply With Quote
Old 11-12-2017, 01:11 AM   #11
MO REX
Scooby Newbie
 
Member#: 52583
Join Date: Jan 2004
Chapter/Region: MWSOC
Location: St. Louis MO
Vehicle:
2002 WRX sedan
PSM

Default

Gotcha. Thanks again for the help.
MO REX 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

All times are GMT -4. The time now is 04:05 PM.


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.