I had a question regarding the temperature sensor in my eclipse, I noticed that there looks two things that look like temp sensors installed in the thermostat housing. The main diference is size, one being larger than the other and I'm looking to install an aftermarket water temp gauge as the stock one failed, and was thinking about putting it into the stock sensor location but seeing two threw me off, I was thinking maybe there's one for the gauge and one for the ecu but wasn't sure, any help would be great.