I was out driving last night and the car started to cough a bit and then stalled now it wont start again the engine turns great so i think that it must be either an ignition or fuel pump issue....i did test the ignition according to my haynes guide and it does seem to be working. I have had a bit of a vacuum issue in the gas tank and have read that there is a relay that shuts off the fuel pump whan there is too much vacuum....anyone have any ideas??