P0191

Technical Definition:

Fuel Rail Pressure (Sensor A) Circuit Range / Performance

Trouble Code: P0191
Address: 0x0191
System: Powertrain
Subsystem: Fuel and Air Metering
Technical Description:

Possible Causes:

Possible Symptoms:

Fuel Rail Pressure Sensor Circuit Range/Performance

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– High fuel pressure
– Low fuel pressure
– Damaged FRP sensor
– Excessive resistance in the circuit
– Low or no fuel
– Wiring harness connector of the fuel pressure sensor
– Fuel Rail Pressure Sensor
– Vacuum leaks
– Fuel

Specific Makes:

– Engine will not start

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