Affordable replacement EGT probe for Defi gauge

06rexwagon · 12-13-2010, 05:02 PM

My EGT probe failed on my Defi BF gauge recently. I wasn't sure if it was the sensor so I borrowed a new one from a buddy because a new replacement one is around $170. It turned out to be the sensor, but $170 is a lot for a thermocouple.
I decided to look around for one that was compatible. I ended up ordering one from http://www.thesensorconnection.net. It came in and I soldered the wires to the old Defi pins and installed it. The polarity is reversed from the old sensor, and the new sensor worked. The problem was that it was reading around 400* lower than it should. I emailed the company and told them about my problem.
Sometimes you just get really great customer service and it surprises you. He emailed me back with a couple of suggestions and questions. In the end he sent me another sensor that was slightly different (for free). I installed it yesterday and it works perfectly.

If you ever need a new EGT probe for your Defi (or others from what I've been reading), you can get it right here for $49.95:

http://www.thesensorconnection.net/e...ession-fitting

* Registered users of the site do not see these ads.

team23jordan · 01-20-2011, 06:53 AM

The sensor in your link is the one that reads correctly?

06rexwagon · 01-20-2011, 11:35 AM

Quote:

Originally Posted by team23jordan

The sensor in your link is the one that reads correctly?

Yes that's the one that works. It's still working perfectly in my car.

rexworx · 01-31-2011, 11:10 AM

Nice find!!!

joe r · 01-31-2011, 01:44 PM

Great find!

joe r

darkinc · 02-22-2011, 06:52 PM

thanks man for the great find. was this a wire for wire hook up?

06rexwagon · 02-23-2011, 10:22 AM

Quote:

Originally Posted by darkinc

thanks man for the great find. was this a wire for wire hook up?

The wire colors are reversed (only 2 wires). I'll try to get a picture of my connectors and post it up.

GoBig · 04-10-2011, 10:38 AM

I too would like to replace my sensor. Was yours *F or *C?

06rexwagon · 04-10-2011, 11:40 PM

Quote:

Originally Posted by GoBig

I too would like to replace my sensor. Was yours *F or *C?

Mine is *F. It doesn't matter though because they both use the same temp probe.

dahgoose · 04-21-2011, 05:34 PM

Do you have pictures of how this is wired up?

mpsti05 · 04-25-2011, 10:06 PM

Cam can you get some pics of this wired, im gonna do this to my sti and my brothers wrx whose gauge just went out

06rexwagon · 04-28-2011, 03:47 PM

I'll try to get some pictures today. Sorry guys.

06rexwagon · 04-28-2011, 10:32 PM

Obligatory pic of the Full Race manifold...

It was hard to get a good picture. Just reverse the original wire colors and it will work. Unpinning and soldering the pins is a pain. If I was going to do it again I'd cut the wires from the old sensor and solder them to the new sensor. Don't forget to reverse the colors.

mpsti05 · 04-29-2011, 08:08 AM

Alright I'll probably just cut them and resolder the wires than, thanks cam

Cefaln452 · 05-30-2011, 04:29 PM

I just bought that sensor, now looking at the back of the gauge there is a 2 pin plug. Which pin is what?

Nomadgene · 04-09-2012, 12:17 AM

This thread is a life saver a couple years later. Defi's new gauges have the price of the replacement cable over $200 now.

Thanks for the hook up.

06rexwagon · 04-09-2012, 09:32 AM

Quote:

Originally Posted by Nomadgene

This thread is a life saver a couple years later. Defi's new gauges have the price of the replacement cable over $200 now.

Thanks for the hook up.

Glad it helped you out. The sensor I bought back when I started this thread is still working perfectly.

Jrod0187 · 04-16-2012, 02:00 PM

I'm going to be doing the same fix... just ordered the EGT sensor. If this works out for me do you mind if I re-post on Evolutionm.net? I'm sure these guys would appreciate it.

-Jarrod

06rexwagon · 04-16-2012, 02:17 PM

Post away!

jpwrxtr06 · 05-01-2012, 09:07 PM

Just did this to my car and the sensors not working... Soldered the old wires reversed to the new ones and it's not working.

06rexwagon · 05-01-2012, 09:27 PM

Quote:

Originally Posted by jpwrxtr06

Just did this to my car and the sensors not working... Soldered the old wires reversed to the new ones and it's not working.

You probably have a bad gauge then, not a bad sensor.

jpwrxtr06 · 05-01-2012, 09:41 PM

It can't be the guage cause ever since we had a bad rainstorm a few months ago the guage started to not work sometimes and now when we get a bad rain it doesn't work but once it drys up it will start working again so it has to be te sensor. I will check the solder maybe tomorrow to see if I made a bad connection

Ride Operator · 05-02-2012, 05:31 PM

06rexwagon are you aware of this probe working with an Omori EGT guage? Thanks.

06rexwagon · 05-03-2012, 07:23 PM

Quote:

Originally Posted by Ride Operator

06rexwagon are you aware of this probe working with an Omori EGT guage? Thanks.

Never tried. It's worth a shot because if it doesn't the people at sensor connection will work with you to find one that does.

mav1c · 05-10-2013, 09:49 AM

Bringing back...

I assume the thread on this sensor is the same as the Defi? You just unscrew the Defi sensor from the bung and screw this one in?

12-13-2010, 05:02 PM	#1
06rexwagon Scooby Specialist Member Sales Rating: (16) Member#: 114730 Join Date: May 2006 Chapter/Region: SWIC Location: Albuquerque, NM Vehicle: 2006 WRX Limited Wag 9.8@150	Affordable replacement EGT probe for Defi gauge My EGT probe failed on my Defi BF gauge recently. I wasn't sure if it was the sensor so I borrowed a new one from a buddy because a new replacement one is around $170. It turned out to be the sensor, but $170 is a lot for a thermocouple. I decided to look around for one that was compatible. I ended up ordering one from http://www.thesensorconnection.net. It came in and I soldered the wires to the old Defi pins and installed it. The polarity is reversed from the old sensor, and the new sensor worked. The problem was that it was reading around 400* lower than it should. I emailed the company and told them about my problem. Sometimes you just get really great customer service and it surprises you. He emailed me back with a couple of suggestions and questions. In the end he sent me another sensor that was slightly different (for free). I installed it yesterday and it works perfectly. If you ever need a new EGT probe for your Defi (or others from what I've been reading), you can get it right here for $49.95: http://www.thesensorconnection.net/e...ession-fitting * Registered users of the site do not see these ads.

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02-22-2011, 06:52 PM	#6
darkinc Scooby Newbie Member Sales Rating: (8) Member#: 188559 Join Date: Sep 2008 Chapter/Region: NESIC Location: Groton, Ct. Vehicle: 06 STI Black	thanks man for the great find. was this a wire for wire hook up?

04-10-2011, 10:38 AM	#8
GoBig Scooby Newbie Member Sales Rating: (0) Member#: 132208 Join Date: Nov 2006	I too would like to replace my sensor. Was yours F or C?

04-21-2011, 05:34 PM	#10
dahgoose Scooby Newbie Member Sales Rating: (5) Member#: 235020 Join Date: Jan 2010 Location: Chico, Ca Vehicle: 2007 Subaru World Rally Blue	Do you have pictures of how this is wired up?

04-25-2011, 10:06 PM	#11
mpsti05 Scooby Specialist Member Sales Rating: (14) Member#: 86741 Join Date: May 2005 Chapter/Region: MWSOC Location: Chicago Vehicle: 05 STi.. Built twinscroll35r Love/Hate	Cam can you get some pics of this wired, im gonna do this to my sti and my brothers wrx whose gauge just went out

04-28-2011, 03:47 PM	#12
06rexwagon Scooby Specialist Member Sales Rating: (16) Member#: 114730 Join Date: May 2006 Chapter/Region: SWIC Location: Albuquerque, NM Vehicle: 2006 WRX Limited Wag 9.8@150	I'll try to get some pictures today. Sorry guys.

04-28-2011, 10:32 PM	#13
06rexwagon Scooby Specialist Member Sales Rating: (16) Member#: 114730 Join Date: May 2006 Chapter/Region: SWIC Location: Albuquerque, NM Vehicle: 2006 WRX Limited Wag 9.8@150	Obligatory pic of the Full Race manifold... It was hard to get a good picture. Just reverse the original wire colors and it will work. Unpinning and soldering the pins is a pain. If I was going to do it again I'd cut the wires from the old sensor and solder them to the new sensor. Don't forget to reverse the colors.

04-29-2011, 08:08 AM	#14
mpsti05 Scooby Specialist Member Sales Rating: (14) Member#: 86741 Join Date: May 2005 Chapter/Region: MWSOC Location: Chicago Vehicle: 05 STi.. Built twinscroll35r Love/Hate	Alright I'll probably just cut them and resolder the wires than, thanks cam

05-30-2011, 04:29 PM	#15
Cefaln452 Scooby Specialist Member Sales Rating: (22) Member#: 255736 Join Date: Aug 2010 Chapter/Region: MWSOC Location: Cincinnati Vehicle: 2004 STi JavaBlackPearl	I just bought that sensor, now looking at the back of the gauge there is a 2 pin plug. Which pin is what?

04-09-2012, 12:17 AM	#16
Nomadgene Scooby Guru Member Sales Rating: (23) Member#: 22923 Join Date: Aug 2002 Chapter/Region: International Location: above 8000 rpm! Vehicle: 2002 EJ207 V8 1.5xtr TWIN-SCROLL Black Bugeye	This thread is a life saver a couple years later. Defi's new gauges have the price of the replacement cable over $200 now. Thanks for the hook up.

04-16-2012, 02:00 PM	#18
Jrod0187 Scooby Newbie Member Sales Rating: (7) Member#: 96428 Join Date: Sep 2005 Chapter/Region: Tri-State Location: Niagara Falls, NY Vehicle: 06 Evo Graphite Grey	I'm going to be doing the same fix... just ordered the EGT sensor. If this works out for me do you mind if I re-post on Evolutionm.net? I'm sure these guys would appreciate it. -Jarrod

04-16-2012, 02:17 PM	#19
06rexwagon Scooby Specialist Member Sales Rating: (16) Member#: 114730 Join Date: May 2006 Chapter/Region: SWIC Location: Albuquerque, NM Vehicle: 2006 WRX Limited Wag 9.8@150	Post away!

05-01-2012, 09:07 PM	#20
jpwrxtr06 Scooby Newbie Member Sales Rating: (5) Member#: 187052 Join Date: Aug 2008 Chapter/Region: MWSOC Location: Berwyn, Plainfield Vehicle: 2006 Wrxtr 6-spd DOM3backoff i'mascientist	Just did this to my car and the sensors not working... Soldered the old wires reversed to the new ones and it's not working.

05-01-2012, 09:41 PM	#22
jpwrxtr06 Scooby Newbie Member Sales Rating: (5) Member#: 187052 Join Date: Aug 2008 Chapter/Region: MWSOC Location: Berwyn, Plainfield Vehicle: 2006 Wrxtr 6-spd DOM3backoff i'mascientist	It can't be the guage cause ever since we had a bad rainstorm a few months ago the guage started to not work sometimes and now when we get a bad rain it doesn't work but once it drys up it will start working again so it has to be te sensor. I will check the solder maybe tomorrow to see if I made a bad connection

05-02-2012, 05:31 PM	#23
Ride Operator Scooby Specialist Member Sales Rating: (3) Member#: 18710 Join Date: May 2002 Chapter/Region: SCIC Location: no go, no show Vehicle: 02 GDA PSM 12 Impreza Sprt Lmtd MBP	06rexwagon are you aware of this probe working with an Omori EGT guage? Thanks.

05-10-2013, 09:49 AM	#25
mav1c Hoodbridge! Moderator Member Sales Rating: (52) Member#: 560 Join Date: Nov 1999 Chapter/Region: MAIC Location: Woodbridge, VA Vehicle: 2006 STi, 16 Outback Crystal Gray, Silver	Bringing back... I assume the thread on this sensor is the same as the Defi? You just unscrew the Defi sensor from the bung and screw this one in?