Affordable replacement EGT probe for Defi gauge - Page 2

06rexwagon · 05-10-2013, 10:02 AM

Quote:

Originally Posted by mav1c

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?

Threads are the same you just need to pin the wires or splice them to the old connector.

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mav1c · 05-10-2013, 01:38 PM

OK. I'll give it a try!

Impreza4ever · 09-12-2013, 01:48 AM

Just finished installing this EGT Probe from thesensorconnection.com and i can tell ya it works just as the original Defi Probe.

Just make sure like they say previously to reverse the leads as Yellow is the positive wire on the sensor.

Thanks to OP for the finding.

06rexwagon · 09-12-2013, 01:51 AM

Quote:

Originally Posted by Impreza4ever

Just finished installing this EGT Probe from thesensorconnection.com and i can tell ya it works just as the original Defi Probe.

Just make sure like they say previously to reverse the leads as Yellow is the positive wire on the sensor.

Thanks to OP for the finding.

Glad it helped you.

awdboostftw · 11-13-2013, 02:31 AM

so it seems as thought i cannot use this if i have no existing egt probe to replace? as in i bought a defi egt gauge with no sensor (but have the half of the wire that connects to the control unit), this is unusable? or is there a way to bypass the plugs on the defi harnesses?

06rexwagon · 11-13-2013, 10:34 AM

Quote:

Originally Posted by awdboostftw

so it seems as thought i cannot use this if i have no existing egt probe to replace? as in i bought a defi egt gauge with no sensor (but have the half of the wire that connects to the control unit), this is unusable? or is there a way to bypass the plugs on the defi harnesses?

If you have the wire that is supposed to connect to the Egt you can cut and solder them.

APM Tuned · 11-13-2013, 12:15 PM

sensor connections, chris, great guy and up front. We were looking for numerous other sensors as well and yup, he's gone as far as sourcing them to make sure we get what we need. Even letting us try a couple out to make sure they are within operating measures.

-Mark

resu · 05-08-2014, 06:29 PM

Bump to 2014 - this just saved me some serious cash. $50 vs $200+ for the same thing. Be mad all you want that I'm bringing it back but it's too good.

neo8222 · 06-01-2014, 06:16 PM

Quote:

Originally Posted by resu

Bump to 2014 - this just saved me some serious cash. $50 vs $200+ for the same thing. Be mad all you want that I'm bringing it back but it's too good.

thanks for that, I hit a "bump" and broke my sensor in half, This will save me a good chunk of cash.

relliMmoT · 04-15-2015, 08:05 PM

I'm glad I remember seeing this thread from a few years back because my sensor is busted now. I can't thank you enough OP!

Shame on Defi for wanting $200 for a simple thermocouple (two wires welded together inside a metal casing)

iNfEk · 04-15-2015, 08:41 PM

Quote:

Originally Posted by relliMmoT

I'm glad I remember seeing this thread from a few years back because my sensor is busted now. I can't thank you enough OP!

Shame on Defi for wanting $200 for a simple thermocouple (two wires welded together inside a metal casing)

Exactly my thought the other day when I saw my sensor.

06rexwagon · 04-16-2015, 10:12 AM

Quote:

Originally Posted by relliMmoT

I'm glad I remember seeing this thread from a few years back because my sensor is busted now. I can't thank you enough OP!

Shame on Defi for wanting $200 for a simple thermocouple (two wires welded together inside a metal casing)

Thanks. I'm glad it helped you out.

bobjr94 · 07-16-2015, 03:57 AM

Yes, this is a little late, but I was wondering people that said my original defi sensor failed...What were the symptoms when your sensor went bad ?

My EGT readings have always been a near 1400 @65mph, lately its been drifting upto 1600, then back to 1500, then 1400 then 1600 again. Even at idle, use to be 850, now 950 to 1000. WBO2 gauge shows around 14.5 as always at light cruise and 14.6 to 14.8 at idle. And fuel trims are still in the -2 to +4 range, not showing the engine is lean or the ecu is needing to add a bunch of fuel. I am thinking the gauge is not telling me the truth.

06rexwagon · 07-16-2015, 09:05 AM

Quote:

Originally Posted by bobjr94

Yes, this is a little late, but I was wondering people that said my original defi sensor failed...What were the symptoms when your sensor went bad ?

My EGT readings have always been a near 1400 @65mph, lately its been drifting upto 1600, then back to 1500, then 1400 then 1600 again. Even at idle, use to be 850, now 950 to 1000. WBO2 gauge shows around 14.5 as always at light cruise and 14.6 to 14.8 at idle. And fuel trims are still in the -2 to +4 range, not showing the engine is lean or the ecu is needing to add a bunch of fuel. I am thinking the gauge is not telling me the truth.

Timing and boost effect EGT as well. If you have a short ram or other hot air intake, your car will be running less timing during hotter weather. Less timing=hotter EGT. If the car is detonating and reducing timing it will also have a higher EGT.

iNfEk · 04-14-2016, 08:23 PM

Installing mine now after buying it a while ago. LOL. hand to change out my header so need a new probe too. Anyway, my wires are kind of old for my Defi link meter gauges and when I cut back the metal braids I have fiberglass and looks like bare wires in them. At the end before the connector end I have red and white wire sheeting.

How did you determine which wire is what and what's the easiest way to connect this up?

resu · 11-22-2016, 05:17 PM

Connectors confirmed.

This thread helped me out big time. I had purchased the sensor some time ago and just installed it. Saved me well over $100+. Hope the below proves useful for some! Thanks again to the OP for the information on the sensor.

If you're OCD like me and wanting to replace with exactly what DEFI uses; below are the part numbers and model names for the connectors. They are made by TE Connectivity (who makes Deutsch connectors, Raychem and much...much more.

Sub-brand for these - called "AMP" by TE Connectivity

Housing for female terminal
Econoseal - J Mk II
Mfr. Part# 174352-2.
http://www.alliedelec.com/te-connect...52-2/70283636/

Male terminal (on the end of the Defi EGT Sensor)
Econoseal - J Mk II
Mfr. Part #881772-1
http://www.te.com/usa-en/product-881...-docs-features

06rexwagon · 06-23-2020, 10:10 AM

Bumping again, as the one I ordered 10 years ago finally bit the dust, so I ordered another.

Flipgod · 03-07-2025, 08:51 PM

2025 B U M P

Was looking around the net for a replacement for my EGT probe. Damn thing lasted me nearly 20 years. I was quite pleased to find an option almost $200 cheaper than the defi replacement.

Cheers!

iNfEk · 03-07-2025, 08:58 PM

my probe that I posted above is still working

06rexwagon · 03-07-2025, 09:54 PM

Heck yeah! Glad to hear it is still helping.

11-13-2013, 12:15 PM	#32
APM Tuned Former Vendor Vendor Sales Rating: (1) Member#: 282460 Join Date: May 2011 Chapter/Region: MWSOC Location: Villa Park, IL Vehicle: 2005 Evo-STI R.R.-WRB	sensor connections, chris, great guy and up front. We were looking for numerous other sensors as well and yup, he's gone as far as sourcing them to make sure we get what we need. Even letting us try a couple out to make sure they are within operating measures. -Mark __________________ [B]APM Tuned[/B] To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. \| To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. \| To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. \| To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. Phone: (630) 833-8911 Email: To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. [COLOR="Black"][B][SIZE="1"]Fill out our online survey for up to $50 off your next order from APM - To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. [/SIZE][/B][/COLOR]

04-14-2016, 08:23 PM	#40
iNfEk Scooby Guru Member Sales Rating: (3) Member#: 21339 Join Date: Jul 2002 Chapter/Region: HIIC Location: Kapolei, HI Vehicle: 2002 LHD STI V7 6MT 12.9@103MPH EJ205 4EAT	Affordable replacement EGT probe for Defi gauge Installing mine now after buying it a while ago. LOL. hand to change out my header so need a new probe too. Anyway, my wires are kind of old for my Defi link meter gauges and when I cut back the metal braids I have fiberglass and looks like bare wires in them. At the end before the connector end I have red and white wire sheeting. How did you determine which wire is what and what's the easiest way to connect this up?

11-22-2016, 05:17 PM	#41
resu Scooby Newbie Member Sales Rating: (2) Member#: 78288 Join Date: Dec 2004 Chapter/Region: MAIC Location: Richmond, VA Vehicle: 2006 Subaru STi CGM	Connectors confirmed. This thread helped me out big time. I had purchased the sensor some time ago and just installed it. Saved me well over $100+. Hope the below proves useful for some! Thanks again to the OP for the information on the sensor. If you're OCD like me and wanting to replace with exactly what DEFI uses; below are the part numbers and model names for the connectors. They are made by TE Connectivity (who makes Deutsch connectors, Raychem and much...much more. Sub-brand for these - called "AMP" by TE Connectivity Housing for female terminal Econoseal - J Mk II Mfr. Part# 174352-2. http://www.alliedelec.com/te-connect...52-2/70283636/ Male terminal (on the end of the Defi EGT Sensor) Econoseal - J Mk II Mfr. Part #881772-1 http://www.te.com/usa-en/product-881...-docs-features Last edited by resu; 11-28-2016 at 09:10 AM. Reason: Confirmed connectors are correct

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05-10-2013, 01:38 PM	#27
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	OK. I'll give it a try!

09-12-2013, 01:48 AM	#28
Impreza4ever Scooby Newbie Member Sales Rating: (0) Member#: 62510 Join Date: May 2004 Location: California Vehicle: 2005 Impreza Wrx Sti WR BLUE PEARL	Just finished installing this EGT Probe from thesensorconnection.com and i can tell ya it works just as the original Defi Probe. Just make sure like they say previously to reverse the leads as Yellow is the positive wire on the sensor. Thanks to OP for the finding.

11-13-2013, 02:31 AM	#30
awdboostftw Scooby Specialist Member Sales Rating: (1) Member#: 178656 Join Date: Apr 2008 Chapter/Region: MWSOC Location: O-H-I-O Vehicle: 14 WRX hatch & 06 Evo IX	so it seems as thought i cannot use this if i have no existing egt probe to replace? as in i bought a defi egt gauge with no sensor (but have the half of the wire that connects to the control unit), this is unusable? or is there a way to bypass the plugs on the defi harnesses?

05-08-2014, 06:29 PM	#33
resu Scooby Newbie Member Sales Rating: (2) Member#: 78288 Join Date: Dec 2004 Chapter/Region: MAIC Location: Richmond, VA Vehicle: 2006 Subaru STi CGM	Bump to 2014 - this just saved me some serious cash. $50 vs $200+ for the same thing. Be mad all you want that I'm bringing it back but it's too good.

04-15-2015, 08:05 PM	#35
relliMmoT Scooby Specialist Member Sales Rating: (9) Member#: 206931 Join Date: Mar 2009 Chapter/Region: South East Location: New Orleans, Louisiana Vehicle: 2004 WRX Wagon 6MT JBP 318WHP//300WTQ	I'm glad I remember seeing this thread from a few years back because my sensor is busted now. I can't thank you enough OP! Shame on Defi for wanting $200 for a simple thermocouple (two wires welded together inside a metal casing)

07-16-2015, 03:57 AM	#38
bobjr94 Scooby Specialist Member Sales Rating: (1) Member#: 6176 Join Date: Apr 2001 Chapter/Region: NWIC Location: Roy,WA Vehicle: 15 WRX, 04 wrb STi 85 wrb BRAT	Yes, this is a little late, but I was wondering people that said my original defi sensor failed...What were the symptoms when your sensor went bad ? My EGT readings have always been a near 1400 @65mph, lately its been drifting upto 1600, then back to 1500, then 1400 then 1600 again. Even at idle, use to be 850, now 950 to 1000. WBO2 gauge shows around 14.5 as always at light cruise and 14.6 to 14.8 at idle. And fuel trims are still in the -2 to +4 range, not showing the engine is lean or the ecu is needing to add a bunch of fuel. I am thinking the gauge is not telling me the truth.

06-23-2020, 10:10 AM	#42
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	Bumping again, as the one I ordered 10 years ago finally bit the dust, so I ordered another.

03-07-2025, 08:51 PM	#43
Flipgod Scooby Specialist Member Sales Rating: (7) Member#: 116616 Join Date: Jun 2006 Chapter/Region: South East Location: Raleigh, NC Vehicle: 06 STi SGM	2025 B U M P Was looking around the net for a replacement for my EGT probe. Damn thing lasted me nearly 20 years. I was quite pleased to find an option almost $200 cheaper than the defi replacement. Cheers!

03-07-2025, 08:58 PM	#44
iNfEk Scooby Guru Member Sales Rating: (3) Member#: 21339 Join Date: Jul 2002 Chapter/Region: HIIC Location: Kapolei, HI Vehicle: 2002 LHD STI V7 6MT 12.9@103MPH EJ205 4EAT	my probe that I posted above is still working

03-07-2025, 09:54 PM	#45
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	Heck yeah! Glad to hear it is still helping.