kendal

OK, I have 2000 Chev express 1500, 5.7l it just cut off one day, after a couple hour it would start and run for a couple min., if you wait over night it will run for about ten min. and it cuts off and it will not restart. the fuel pressure is constant between 54 and 60 psi, new coil and module, no codes at anytime, yesterday i disconnected the coolant sensors and it ran till I shut it off, today I hooked the sensors back up and after about ten min. it died, I disconnected the sensors and it would not restart. I disconnected the battery for 10 sec.. reconnected and it started after giving it a little gas but ran very rough.