Which EGT sensor for Greddy Ktype vs RTD?

[Jay braze]

I'm trying to figure out what EGT sensor type I need. I have a 2g eclipse gsx with a 6bolt swap. I have the white face greddy gauges on my A pillar. I need an exhaust gas temperature sensor. I found some on AEM so I called to order one and was asked whether I need a ktype or rtd. But I have no idea which one does anyone know? I even called greddy and they didn't know. Any help would be appreciated

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[llxkevinxll]

Can you show us the connector or wiring to the sensor on the back side of the gauge?

How Do You Tell a Thermocouple From an RTD? - Thermal Corporation

How do you tell a thermocouple from an RTD? Read this Thermal Corporation blog post to find out. More blog posts can be found in our Blog Archive!

www.thermalcorporation.com

"There can be several clues as to whether you have a thermocouple or an RTD (Resistance Temperature Detector). For example, if the temperature sensor has three leads, the sensor is an RTD. Thermocouples only have two leads. On the RTD with three leads, almost always two of the leads will have one color and the third lead will have another color.

For a two wire RTD, usually both leads will be of the same color. For a thermocouple, the two leads will always be of different colors."

 

[Jay braze]

Thanks for the quick response. The car is in the shop and they are closed on the weekends. I'll try and get a picture of behind the gauge Monday.

 

[AWD-Tony]

I have the same gauge without memory. I got a replacement sensor from this company but the link to the sensor is no longer available. Try emailing him. Email at bottom of email.

The Sensor Connection EGT Probes Motorsports Sensors and Gauges

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[Jay braze]

Hey awd Tony. So did you get an rtd or thermocouple sensor?

 

[AWD-Tony]

Hey awd Tony. So did you get an rtd or thermocouple sensor?

Honestly can’t remember. Google says this:

What is the difference of rtd and thermocouple?

RTD is more suited to measure lower ranges of temperature. The measuring range of an RTD lies between -200°C to 500 °C. A thermocouple can measure a larger range of temperatures. The measuring range lies between −180 °C to 2,320 °C.

So I would guess thermocouple. Also says “thermocouple” in the link in my email.

Also what Kevin said points to thermocouple since it has only two wires.

 

[mikellinos]

I think the sensor you need for that gauge is the Greddy 16401302.

 

[Jay braze]

My mechanic said there are 2 wires connected into the egt gauge. I will have him send me a picture of them and post it tomorrow. Hopefully I can get a definitive answer.

 

[Jay braze]

Not sure if this image helps but here's what's behind the gauge

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[AWD-Tony]

That’s the connector to the gauge. If you follow that harness, you should find another connector with two wires. Think post #7 has the correct sensor you need.

 

[Jay braze]

Does this look right? So I would drill into the exhaust manifold and put the silver end in there?

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[Jay braze]

I was thinking it would have a needle like tip like either of these 2. Just want to make sure befor I drill into the manifold

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[AWD-Tony]

No. It’s this one. I recommend getting one with a 90* bend

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[AWD-Tony]

And yes, you’ll have to drill and tap the manifold.

 

[Jay braze]

AWD Tony thanks for the quick responses. That one looks straight, I don't see a 90 bend in it. Should i look for that one with a 90 bend or is that one in the picture the one i should get? let me know if you say that's the one I'll get it ordered and hopefully get my gauges going

 

[AWD-Tony]

I don’t want you to get the wrong sensor. They have straight and 90*. I’ve used both and the 90* just looks cleaner imo.

Contact these people and they WILL get you the correct sensor. If you don’t have the old sensor, you will also need the connector for you application.

https://thesensorconnection.com/content/contact-us

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[AWD-Tony]

I got the link to work. This is what you need

Sensor

EGT Probe Exhaust Gas Temperature Sensor - 3/16" Diameter

Our #1 Selling EGT Probe! • EGT-EP series • Probe diameter 3/16 inch (0.187 inch) • Exposed Tip Sensing Junction (Fast Response) • Response time constant: 250...

thesensorconnection.com

The sensor doesn’t come with a connector. If you don’t have the old sensor, you’ll need these.

Connector - male

Mini Male Plug Thermocouple Connector - Type K

• Industrial quality • Includes wire strain relief bracket & rubber bushing (removable) • For use with any of our EGT Probes or CHT Sensors (Type K) MADE IN THE USA This...

thesensorconnection.com

Connector - female

Mini Female Jack Thermocouple Connector - Type K

• Type K Mini Female Jack Connector - Flat Pins • Industrial quality • Includes wire strain relief bracket & rubber bushing (removable) • For use with any of our EGT...

thesensorconnection.com

VERY IMPORTANT
Greddy Red = Our Yellow
Greddy White = Our Red

 

[Jay braze]

Thanks for all the help!!