You need to put a fuel pressure gauge on it to check pressure, but since it is starting at all even for a second I would be more inclined to say fuel pump is weak, but since you pulling a code PO190 fuel rail pressure sensor , it could be a bad sensor since this is the sensor responsible for feeding data to the FPDM so it knows how hard the pump should be pumping fuel. I suspect either you have a problem in the plug such as corrosion or you have a bad fuel pressure sensor. ,,, Possibly even a vacuum leak at the sensor.
If you know how to energize the fuel pump to 100% you can test the integrity of the pump, this can be done using a tech II scanner or manually using a jumper wire.
Last edited by dawson1112; 07-04-2014 at 02:01 AM.