There is a water temp sensor on the factory heater rail. It is required. There are ports in the intake you can use for this. The Air temp sensor is on the lower intake in the drivers side on the second intake tube near the bottom.
Both of these are required for the EFI to work correctly.
Ezra, give me a call. You can set up the water temp sensor without put the heater rail back in. In your diagram it's 17 and 18 I have been talking about.
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