P0183 DTC What does it mean?
 

Car is a 2003 Sonata with 105K and a 2.4 motor. Recently had the original timing belt, balancer belt, crank sensor and fuel pump replaced. After the repairs were finished, the DTC showed up.
Kind of weird the fuel pump AND the timing stuff all were bad at the same time.
Luckily the timing belt never completely failed to bend any valves.
Thanks in advance for any help.

Not weird at all if they replaced the fuel pump. P0183 is an problem with the fuel temp sensor on the fuel pump. It appears whoever replaced the fuel pump damaged the fuel temp sensor. P0183 means the signal voltage is too high (greater than 4.6v).

http://www.hmaservice.com/files/331/...6/0336015A.gif

Can just the sensor be replaced? Is it possible the sensor just wasn't plugged in upon replacing the fuel pump?
Or am I better off finding a used sending unit at a local boneyard? There are plenty available in MN.... The sending unit is easy to pull out of the trunk area.
Thank you for explaining what and where a fuel temp sensor is, although I do not fully understand what effect fuel temperature has on the performance of this fuel injected car. Hyundai overkill?????

From hmaservice.com:

The sensor measures fuel temperature in the fuel tank and the ECM uses this information for the Evaporative Emissions Self Check. Fuel vapor pressure increases when fuel temperature increases so the ECM references the fuel temperature and indirectly compensates for the fuel vapor pressure during the evaporative emissions leak check.

The fuel temperature sensor uses a thermistor whose resistance changes with the temperature. The electrical resistance of the fuel temperature sensor decreases as the temperature increases, and increases as the temperature decreases. The reference 5v in the PCM is supplied to the fuel temperature sensor via a resistor in the PCM. The resistor in the PCM and the thermistor in the fuel temperature sensor are connected in series. When the resistance value of the thermistor in fuel temperature sensor changes with variations in fuel tank temperature, the output voltage also changes.

Yes, you can change the sensor without changing the fuel pump itself.