My 95 Z28 has an after winter storage problem:

When the car cold starts, the radiator cooling fans come on within a few
moments. Within a few seconds, the check engine light comes on. Once in a
while the fans will shut off for a minute or less and the check engine light
goes out but when the cooling fans start up again, so does the check engine
light.

The engine isn't hot at any time. The temp gauge is right where it's
supposed to be. Could this be an engine temp sensor sending the wrong
information to the computer and where exactly is the ETC sensor on my LT1
engine?

I haven't started my on the road insurance for the car yet. When I do, I'll
have it scanned at AutoZone but I'm hoping someone here can tell me
something that might help me to fix it now.

Advice is appreciated. Thanks!