Thought I'd let anyone else who runs across this problem in on my remedy. The fan switch was the culprit! The fan switch is not to be confused with the knock switch. They are both in the same vicinity near the starter cellinoid. They both have a wire running from them. Needless to say, I mistook the knock switch for the fan switch. Once locating the fan switch, disconnect the wire and then with the ignition key on, ground the wire to a suitable location...the electric fan should run. If it does the fan switch is indeed needs to be replaced. If not, then check the relay switch and if not that then check the ECM. Now, two things: the fan does come on but as others have indicated, not until anywhere from abt 220 degrees to say 260 degrees! Is that not to hot?! or was this vehicle designed to run/idle to that level. I worry about any damage that excessive heat may cause, is this a valid concern? Also, I purchased a Haynes manual on the Camaro for models between '82-'92. Lots of good info in this manual but very poor indexing. I could only find one reference to the ECM and did not ever find a reference to the knock switch (which I replaced. The only other alternative that was given to me about the fan situation was to by pass the fan switch and tie it into the ignition resulting in the fan running all the time. Hope this will help someone else down the road. I love my RS!!