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P0191 Diagnostic Trouble Code Discussion for December 2010

Fuel Rail Pressure Sensor Performance

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Trouble Ticket Help Requests for DTC P0191
Help Request Posted
2006 Dodge Ram 2500 SLT 5.9L MIL Lamp on VIN: 3D7KS28C46
P0191: Fuel Rail Pressure Sensor Circuit Performance. Diagnosis chart for this code states that with key on and engine not running fuel pressure in data stream should be more than 870 PSI. PSI shown currently is 5 and sometimes 9. With engine running PSI varies between 650 and 750. I have found very little as far...
December 17, 2010