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Discussion Starter · #1 ·
Hi, I have a strange problem. Back in 2016 I removed the engine from my is300 and it has sat there for 3 years, anyway I've put it back in and got it working except there is a problem. Next to the Coolant temp sensor on the side of the head there is another threaded hole that I only noticed when i tried to fill her up with coolant and it all came out.
I cant seem to find out what is supposed to go here, (I dont even remember removing it) theres not even a connector on the loom for it as far as I can see.
Could anyone give me some advice one what this is and where I could buy whatever it is?
I have put a picture up that I found on google
Many thanks
133771
 

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Discussion Starter · #3 ·
I read somewhere that it's the second temperature sensor for the dash, but I've also heard that the IS300's didnt come with them as it's taken from the ecu which explains why I cant find a connector on the loom for the would be sensor. Still, I cant understand why it isnt there now.
 
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