well yeah it started off as i went to work and delivered something and then battery died, my friend came with jumper cables dunno why he didnt look but he put a postive on a negative on the battery smoke started comming out, i looked a saw it and took it off, didnt know what went wrong yet, so we swaped it to the right way and we charged the car, we got it running but the rpm and mphs werent moving, after work i tried to start the car and no go, notting turns on what we changed was the fuel pump as it wasnt pumping gas, and i changed the fuel filter just in case. but when i start the car it'll bog and die, or if im lucky it'll start for 5 seconds and then bog and die. if i step on the gas while it is idling it'll die. the other weird thing is that if the check light is on i cant start the car i'll have to wait till it goes off then i can try and attempt to start the car. just alot of weird things. we changed the relay near the fuses under the dash. and still notting any1 knows why this is happening? .