Even though the pressure in the fuel rail is good...and still cks good with the vacuum hose off ?? Do you know if the regulator and the rail is suppose to hold pressure for a long time even after the car is off.?? The haynes manual says it should drop slightly and hold steady, but it doesnt state for how long. It will continue to drop if i leave it sit.... I only had the gauge on for 15 minutes but it slowly drops. Funny thing is even at Zero i think the fuel pump should prime it right back after turning the Key.....I have no problem changing the regulator but i hate to do it if it wont fix it !!!

Thank you for all your inputs everyone.....