What tests can I do to test fault code P0193, and code P0183 on my Dodge Nitro

P0183 - Fuel Temperature Sensor A Circuit High Description: The comprehensive component monitor (CCM) monitors the fuel temperature sensor circuit to the powertrain control module (PCM) for high voltage. If voltage exceeds a calibrated limit for a calibrated amount of time during testing, the test fails. Possible Causes:

• Open circuit
• Open or short to voltage in the harness
• Incorrect harness connection
• Damaged fuel temperature sensor

Diagnostic Aids: Verify the FRT PID value to determine an open or short. Application Key On Engine Off Key On Engine Running Continuous Memory All GO to Pinpoint Test DD .

Fuel pressure outside nominal range. Check pressure at fuel rail.

Find diagnostic trouble flow chart for DTC P0191 an do the testing ! Don't guess ! And watch this guy's video FORD FUEL RAIL PSI SENSOR CODE P0193

too many possibilities, from fuel , to ignition,vacuum problems , position sensors , ignition switch
However you can help to get an answer by having the fault codes read first then commenting on the codes to help with your problems
Always include all details of the vehicle ( make ,model year ,engine type ) in your question

I do not know this is good

this is the fuel temperature sensor a circuit high input reading

If the motor has common rail injection it doesn't have a conventional injection pump but it does have a high pressure pump and if the pressure is slow to build due to air leaks, drain back or wear then injection will not begin until the rail pressure is sufficient.

If there is a conventional injection pump it can still suffer similar maladies but will not be capable of generating such expressive codes.
Codes incidentally, often indicate a relay or sensor or something has a fault, though that isn't as simple as it sounds and a code read is only a small step in a diagnostic process. Often it is just as likely the circuit that has the fault - wiring, connections or the ECU itself. Sometimes a fault code is an indication of a fault elsewhere. Other test equipment should be used to verify the fault code and no component should be replaced until it is found to be faulty using independent testing methods and when something must be replaced the circuit should be tested and success verified before moving on to the next stage.

Basics first is the best practice rule and in addition to the obvious basic stuff it is worth noting a good cranking speed is essential and the injector spray patterns and pressures should be tested and while the injectors are out being tested/overhauled why not do a compression test...

You will need to have a diagnostic test on this vehicle which will then provide you some error codes.Then once you get the error code you can start looking where the fault is.Hope this helps.

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P0183 is the fuel temperature sensor which has got a high output. This sensor is situated in the ECM. Have they tried erasing the fault code?