pontiac grand am 1995 3.1

[Kerley]

Hi! I live in Brazil and own a 1995 Pontiac Grand Am with a 3.1L V6 engine. It won't stay running; it cranks and fires up for a second if I give it a little gas, but then it dies. I've been looking for a scanner but can't find one anywhere. I built a cable using a USB board, a chip, a 10k-ohm resistor, and a diode. I'm trying to download TunerPro, but the site is blocked in Brazil... Does anyone know if this program will read my car's system? Can I use this program with the specific engine file? The software needs that file to load the settings for the 3.1L V6 engine... Can anyone help me? Thanks!