Whats the easiest way to test the compressor on a 93 Accord? Aç blows fine, just not cold.

 

if its not cold its not blowing fine. the a/c IS the cold, the blowing is just the blower fan.
you need a set of manifold gauges with proper fittings for your car, and you will need to measure pressure on the high and low side to determine what the charge is and what the effectiveness of the compressor is.

 

Did it just start not working? First see if the compressor is engaging. If it is not, check the solenoid fuse. if it is good, then I would find the low pressure switch, and jump it out. If that makes the compressor spin, then youve either got a bad switch, or more likely you are low on refrigerant.