My 1989 SHO has a promblem when i drive it and go to put the pedal to the floor it wants to sputter and misfire. I noticed that it only does it when the car is warmed up. I replaced the spark plugs cleaned the fuel injectors and had the fuel system profesional cleaned out and it still does the same thing. I thought it might be my fuel pump because when i go to start the car in the morning i have to leave the key on the ON postion until i can start the car you can hear the fuel pump turn on but if i go to start the car right away it wont start right of way i have to crank the engine a couple of times befor it will start, but if leave it on the ON postion for a 1min or 2 it will start after 2-3 cranks. Please Help
Feb 1, 2006 at 7:12 AM