1994 Honda Accord 94 Accord Cooling/Running problems

Engine has been running hot when in traffic or sitting for long periods of time. Almost starts running hot emmidiately when I turn ac on and car will sputter and die immediately if sitting still. Neither fan was working for about 2 months but not running hot very often unless the ac was on. I replaces fan timer relay and timer switch. I took to repair shop and they said everything was fine it was running perfectly and I asked if the radiator fans were kicking on they said yes. They said they let it run with ac on for about an hour. I found this very hard to believe but they weren't charging me to check it out so I didn't argue. When I got into the car and turned on the ac it went dead and neither fan was working. So I took to different repair shop and they ran computer diagnostics and said I had a bad conderser fan motor and idle air valve. And the cost would be $410 to replace fan motor and clean the Idle air valve. They said the radiator fan was working fine.I decided to buy a new fan motor and assembly off of ebay for $45 and replace it myself. Now condenser fan is working but I have yet to notice radiator fan ever running? It gets very hot under the hood and when I get oil changed they tell me it shouldn't get this hot. Why isn't the fan running? When I straight wire it, it runs but never when driving? Shouldn't it have threw a code on the computer diagnostic test? It has yet to run hot since I replaced the condenser fan, although I don't run the ac that much and it will not come on unless I turn the ac on. What do I need to fix to make radiator fan run like it is supposed to and get the condenser fan to kick on no only when ac is on? Sorry if I rambled on but I would love any advice. Thanks in advance!