oh by the way, as for the temp sensor, they are simple devices mounted in a black plastic case on a little ring in the front intake. if the car is parked with the sun shining on it, being black, it will read a high temperature on it, or if parked in warm still air, will read slightly higher until it gets into a free flowing ambient air where the actaul temperature will be measured.
side note:
temperature is not constant is affected by many local factors, the AGW/CC crowd that would have consign our Porsche's to the scrapheap to drive around, like them, in a Toyota
Pious, use this very situation by the placement of temp sensors in locations that will read higher temps than actual..
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