3SFE engine does have an adjustment. 5SFE, I don't know. However, I doubt if it has become un-adjusted. I suspect that you have a combination of a deteriorating sensor and/or dirty environmental system (IAC valve?). Also, the AC system has an idle up control. Maybe that is faulty. I would recommend a thorough cleaning and sensor testing before trying to adjust the idle.
Often, it's the loose screw between the steering wheel and the driver's seat that needs to be fixed first!
Stock 1995 Camry, 5SFE, Sedan.