You got lucky. I was having a good day. I'm normally the asshole.

That being said I hate answering questions that have been answered before.

And so does everyone else. Keep a thick skin and be an asshole back. But read the fuckin manual first.

I get that. I come from MazdaspeedForums so I hate being "that guy". Nobody here is even coming close to the fuckery one has to endure on that forum hahaha. CodeMonkey knows all about MSF you've probably seen him floating around MT a bit too hahaha.

Digging up this thread since this has been one of the top results when lookup up adding Oil Temperature sensor to megasquirt.

The 1/8" NPT GM sensor (which you can screw into the sandwich plate) has a part number "TX73T". It should come up in any search as a coolant temperature sensor. DMed Aidan to get this info.

They should be super easy to find on ebay, available for global shipping for <30$ shipped.

I am unable to find connectors or pigtails online, so unless you can get a junkyard pull I would recommend just soldering wires to the pins, then potting the sensor for extra reliability (I just used some Permatex as its somewhat flexible and assume will be better)

Attachment 232777
(a bit dirty before I cleaned up the soldering, make sure its nicely soldered, I just grabbed the thing by one cable at a time and spun it as fast as I could to ensure it was decently solid)

Attachment 232778

I then shrink wrapped it for extra strain relief of the cables, and added some nylon mesh for less shitty looks:

Attachment 232779

Couldn't get a good view of your connector pre-wired. No Amazon?


for this sensor

Its a really small connector https://www.ebay.com/itm/Standard-Tru-Tech-TX73T-Air-Charge-Temperature-Sensor/380449766421?epid=74407271&hash=item589492bc15:m:m RkUJ19XUBUG8Y0mQAFk_vQ:rk:1:pf:1&frcectupt=true

Its really hard to have an idea of sensor connectors online sometimes lol.

This one is round, with a locating tab. In my picture I cut off a bit off the tip so it sat flush with the top of the pins for easy soldering. You could also use some normal pin connectors and pot it, I guess.

I understand. That same sensor is listed for a Saturn SL coolant temp and would use this pigtail FYI: Saturn SL Engine Coolant Temperature Sensor Connector Dorman 62942MQ

i just go to junkyards and grab them off sl's. They are a dime a dozen here.

I think @afm had a better 1/8npt sensor with a "weatherpack" style connector.

So triggered. I personally use the TX73 above with a pigtail off RockAuto (Standard S1170). I paid $16, looks like they're $21 now.

Delphi makes the 12160855 fluid temp sensor, which is 1/8 NPT and uses an unsealed Metri-Pack connector. However, it uses a different curve from normal "GM" sensors --- the resistance is ~4x as high at every temp.