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P0191 Diagnostic Trouble Code Discussion for May 2012

Fuel Rail Pressure Sensor Performance


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Trouble Ticket Help Requests for DTC P0191
Help Request Posted
2007 Ford Focus SES 2.0L No Start, Cuts out, Stall, MIL Lamp on VIN: 1FAFP31N97
P0191: Fuel rail pressure sensor a range/performance. Can watch the pids on computer to see that it is turning fuel pump on and is duty cycle at 44.9 % but isn't getting desired fuel pressure from pump..Can shut key off and start it right back up and everything is perfect with pressures...also the computer shows ...
May 23, 2012
2007 Ford Focus SES 2.0L No Start, Cuts out, Stall, MIL Lamp on VIN: 1FAFP31N97
P0191: Fuel rail pressure sensor a range/performance. Can watch the pids on computer to see that it is turning fuel pump on and is duty cycle at 44.9 % but isn't getting desired fuel pressure from pump..Can shut key off and start it right back up and everything is perfect with pressures...also the computer shows ...
May 23, 2012