Hey guys been having some trouble with my 1993 z28. my service engine soon light is on. Giving me a short in the courtesy code. When I start my car the radiator fans come on immediately and wont turn off. Or some times they don't turn on and will not turn on at all until the car just over heats. Anyone have any issue like this ?? any and all ideas are welcome. thanks

 

What does "short in the courtesy code" mean?

If your check engine light is on, you can pull codes with a paper clip (93s only). Fans come on with the light, so that part is normal. You will have to add details about the fans not coming on and overheating scenario. (give engine temps)