Code 0191 Fuel Rail Pressure Sensor Range

rodney54rodney54 Member Posts: 1
edited February 2015 in Mercury
I have a 2002 Mercury Sable with 82000 miles. I am picking up code 0191 on my scanner.
I have replaced the fuel rail pressure sensor and still have the same problem. The car runs good until it gets to running temp then it starts missing, running rough and will eventually die. I know that the fuel pump is running and getting fuel to the rail. Could it be the fuel pump drive module?
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