the next place i would look is kinda hard to explain over forums. you need to see if it sounds like the engine is starving of gas or choking out. if it's starving out of gas then start with the fuel lines. easiest to check would be fuel filter. next would be to drain the entire system of fuel. then turn the key on but dont start the engine. sit it for 3 or so seconds, then turn it off. do this 4 or 5 times so that the pump can get the fuel back to the engine. if this doesnt work see if you can get a mechanic that does house calls (unless you have one???) and get that cool guage that hooks right up to the fuel rail and see if your pressure is low. low pressure will result in vapor lock. this is a very uncommon problem but you never know. i had it