Do any of the ICD analogue inputs have internal pull ups so a temp sensor can be wired to it?
Or do I need to wire a temp sensor to an input that has a pull down and run 5V/signal to the temp sensor?

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Some of the analogue inputs have the ability to define a pull-down on.

Analogue inputs 1 to 4 have a 330ohm selectable pull down.
Analogue inputs 5 and 6 have a 10kOhm selectable pull down

Click on "Sensors" from the Home screen of your setup in ToolSet, then select the analogue input you would like the temp sensor to be allocated to. From here, you can see the "Termination" options.

Cosworth Support
Cosworth Electronics 

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