my 1993 toyota corola wont start when its in 40s-50s but will start when its below 32 or above 60 whats wrong?

Answer 1

It would be a good idea to change the air temperature sensor in the induction plumbing.They sometimes go out of range,fooling the computer in to thinking the engine needs more or less fuel.

Answer 2

It's very helpfull to include a little more information in your question to help us, help you, in your times of trouble.

If you could give a more detailed explanation of what is happening when you turn the key to start your car.
1) Nothing happens?
2) You hear a "click", but nothing else?
3) You hear the starter turning, but the engine doesn't turn?
4) The starter turns the engine, but the engine won't start up?
5) The engine turns over, but very slowly.
6) the engine turns, but there's an awful banging noise?

ADDED:
"Won't start" is pretty vague. It could be hundreds of posibilities.
Dead battery, Low battery, bad ground wire to engine, bad power wire to starter, bad power wire to battery, bad connection at battery post or terminals, blown fuse, bad key switch, bad starter, bad fuel pump, bad injectors, out of gas, neutral safety switch, seized engine, broken connecting rod, no compression, no spark, bad oil pressure switch, broken timing belt, plugged fuel filter, bad starter solenoid, bad starter, broken rotor, cracked distributor cap, Anti-theft device, water in/on engine, out of gas, vacuum leak, bad gas, bad ignition coil, blown computer, ...

I could list 50 more things easiy...

When you turn the key to start it, what happens?

Could you be a little bit more specific??