P1143 JEEP Fuel Rail Pressure Malfunction Positive Pressure Deviation

Possible causes
– Incorrect fuel pressure
– Faulty Fuel Rail Pressure Solenoid
– Fuel Rail Pressure Solenoid harness is open or shorted
– Fuel Rail Pressure Solenoid circuit poor electrical connection
– Air in fuel system
When is the code detected?
The Engine Control Module (ECM) has determined that the fuel rail pressure is too high for a specific condition
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)