Toyota Repair: car wont start, toyota celica 92, toyota celica

Question
Hi I have a problem with my toyota celica 92 every time I try to start the car it wont start  and it finally starts when I put it to drive it will go off and when the car finally starts running the car feels as if some one is pulling it back and i step on the gas and i will not gain any speed i really dont know what is wrong with I was told to change the MAP sensor i did but have the same problem please help me thank you for your time  

Answer
The information is a little confusing to me I'm not sure if there is an engine or transmission problem so I will need to ask you some very basic questions so I may be able to help:
With the shifter in the "P" position does the engine start and idle without putting it into any gear?
When it is shifted into "D" and the gas pedal is depressed does the engine rpm go up but the car doesn't move?
Does the engine gain rpm in the "N" position when pushing down on the gas pedal, it should go to about 6000 rpm on the tach, as soon as it reaches that point get off the gas pedal, does this happen?
What is the maximum speed that can be reached with the car in the "D" position?