Most likely because your anti-theft system was not reset. It must be done.
Replacing the door handle on a 1997 Toyota Camry is easy with the proper tools chief among which is your check book. Start by going to the nearest Toyota dealer. The rest will fall readily into place.
Yes
I would start with replacing the spark plug wires and spark plugs (if you did not do that for a while). If does not help check the coils or distributor depending on what you have.
Problems cause by a defective fuel pump in a 1994 Toyota Camry includes stalling, failure to start, and intermittent running. Replacing the fuel pump requires the gas tank to be removed.
start with dynamite....... start with dynamite.......
No start.
http://www.allpar.com/fix/nostart.html
it probably needs a new battery
Check the starter fuse.
There are many different reasons for that... It can be faulty fuel pump. It can be low pressure in the fuel line. It can be faulty fuel pump relay and etc.
battery needs replacing, make sure you replace it with a battery of correct cranking amps
start the engine if it runs its good