Engine Mechanical problem
1987 Buick Century 6 cyl Two Wheel Drive Automatic 88105 miles

I am having trouble with my car this morning. Teh engine service light came on I let it warm. up but when I started to goit was really rough. first it would start to go them want to idle real hard. after a lttle bit it it was fine now when I start going i have to give allot more gas than I normally do befroe it goes. it shifts a little rough. when I put it in reverse its when it is most noticiable. it acts like it wants to die.

Pull the code/s from the computer and comeback with it-check the fuel pressure/throttle position sensor