Ok finally after owning my 1992 SL2 for 15 years, I bought a scan tool that also allows 'live data' to be viewed. I often wondered what the actual engine temperature readings were on my gauge. And at what temperature the PCM turns the electric fan on and then back off. Now I know, take a look: [url]http://www.current.net/james1549/saturn/eng_temp.html[/url]