Hello, I have a problem and I hope i can find some answers here.
So I have 2011 Skoda Octavia mk2 2.0TDI 103kW and it has no power at the moment. glow plug light is flashing all the time and diagnostics shows only one fault that is P0193 Fuel Pressure sensor (g247) short to plus. I have changed that sensor, also fuel pressure regulator and its still the same problem, i took my car to several auto repair shops but no one could find actual problem. They have checked the wirings and all other electrical stuff but could not find exact problem. any Ideas ?

A fault code doesnt mean that is the fault. It simply tells you the ECU is reading something that is not within tolerances. 

 

So to break that fault code down - sensor short to plus/5V. Meaning a wire that shouldnt be is reading 5V.

 

There are generally 3 wires going into this style of sensor and it is a pressure based resistor. So you will have a 5V input, ground and signal. First thing first is to check you have 5V on one wire, continuity with ground on another and possibly ground on the signal wire. After this you want to scope the wires to see what is happening.

 

The actual voltage range for the signal wire is 0.5V to 4.5V - anything below 0.5V is classed as a short to ground, anything above 4.5V is a short to plus. Now depending on which way round the sensor works, as pressure increases voltage may drop or increase. So if we had a extremely high or low pressure outside tolerances you may see the signal voltage drop below 0.5V or above 4.5V which would throw a fault code. 

 

 

You need to find yourself a competent diagnostic technician who can actually fault find, confirm the fault, confirm the cause and repair/replace what is required. Not someone that will just read a fault code and throw a part at it.