I took car to a computer diagnostics shop and they cant figure out why its breaking down and running slow cause its not throwing a code i think it the fuel pump but its only got 20000 miles but has been sitting for 2 years [>:]

 

ouch it might be some buildup in the motor itself

 

Does it do it regularly or just once in a great while. If fairly consistent you should be able to have them scan or record data while you drive the car. Then see what is lost.

What does it do as exactly as you can explain. This may help. Just loosing power???

 

Fuel pump sounds like the issue.....when a car sits that long you need to put some gas stablizer....and they obviously didnt do that.....so, now it is catching back up to you.....

 

well actually its always running sluggish and it dies everytime i drive it ill drive for about 10 15 mins then it will feel like it is running out of gas just bogg when u give it gas then u pull over and it will die but then i can start it back up and drive it for about 5 mins then will die again and when its not dying on me id want to speed up and it will just stay at 2 and a half and 3000 bogging [:@]