the car came to a stop yesterday and shut off,then it started right back up and was running kinda shitty but then cleared out and like 2 hours later when the car was coming to a stop again it shut off then wouldent start for 5 minitues.when it finally started it was running real shitty then cleared out again and hasent done it sense.the pump has never been changed but the filter got changed 1 month ago.would the pump from the v6 on those be diffrent then the z28?and who locally has a fuel pressure tester?