my engine fan on my 94 z wont turn off and i dont know if its the relay ( if so where is the relay ) or maybe the a/c relay in the dash might be broke because only the high fan stays on. the fans running like i have the a/c on all the time.

 

There are iether 2 or 3 relays involved, depending on which end of the model year run the car was assembled. The relays are located in the under-hood box. They relays are alway controlled by the PCM. There is a possibility that someone bypassed the relays and wired the fan for constant on. (stupid fix for when the fans don't go on). Normally, the AC signals the PCM when it is turned on and the PCM then forces both fans ON, but in your case only one fan goes on, so that would leave the AC out of the picture. Also there could be a short in the control wiring, or a relay is stuck, or relay contacts got welded due to overload.