could someone tell me what sensor that this code is referring to thanks

 

P0193-FUEL PRESSURE SENSOR VOLTAGE TOO HIGH
The fuel pressure sensor is mounted vertically near the top/center of the fuel rail
The fuel pressure sensor monitors actual high-pressure within the fuel rail. An output signal from this sensor (relating to fuel pressure) is sent to the Engine Control Module (ECM).
To prevent leaks, sensor must be tightened to 70 N·m (52 ft. lbs.).

 

so do i just need to tighten the sensor and all will be good

 

I could give you the diag procedure, but you should still be under warranty. Do you have access to a scanner?

 

While monitoring scan tool, connect a jumper wire between the (K181) signal circuit and the (K915) return circuit of the Fuel Pressure sensor connector.

Does the DTC P0192 set?

Yes

Replace the Fuel Pressure Sensor

 

P0148-HIGH PRESSURE COMMON RAIL (HPCR) CHECKSUM

I would take care of fuel sensor problem first.

HIGH PRESSURE FUEL PUMP
INTERMITTENT CONDITION
Dignostic Test
1. OTHERS DTC'S PRESENT
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With the scan tool, read DTCs.
Are any other DTC's present?
Yes
Repair other DTC's first.