The car has not started for a week with no code. So I have change coolant temp sensor, coolant fan sensor, checked for spark (it good), check the fuel pressure its @ 42psi when trying to start. So last night I went to go F with it! took off a spark plug wire and started it up! It ran Great-- What The Hell "I said" turned it off put spark plug back, started it up (Check Engine Light On - Code Read P0139 "pressure regulator high pressure"). So I unplug the battier took it off sensor and cleaned it (looks like this - http://www.rockauto.com/catalog/moreinfo.php?pk=934719 -) put it back together started it up ran great, NO Check engine light on "perfect" FIXED & DONE... This afternoon girlfriend calls me saying the DAM car wont start. "REALLY" I go home try to start it NOTHING & NO CHECK ENGINE LIGHT it's like it never started.... so sad!