Hey guys, I'm having an issue with my new koyo radiator, pulled it out of the box the other day and realized that next to the drain plug there is another open hole, after doing some research I found out it's for the 1jz electric fan temp sensor, so my question is can a 2jz and 1jz temp sensor interchange? I've looked all over and can't find anywhere that sells the 1j sensor. What is the thread size? And what is the size of the actual sensor since I will probably just be plugging it with some type of drain plug since my old 7m radiator doesn't have a sensor for electric fans