Lost power today Code P0191?!?!

[RUQWKNF27]

2014 DSG Car has been fine around town since I got the Cp3 conversion done put around 250 mile around town with out hiccup.. Today started a trip on the interstate and all hell broke loose. would not accelerate and sudden loss of power. When I got the car back i had a code P0471 exhaust psi sensor but was told that was from full delete and could be taken out. But today got the p0191 fuel rail pressure sensor//p026A basically saying clean intercooler// Car got to where any time I would try to accelerate it would like defuel/limp mode. I could hold the pedal at 60 mph and feel the power come in and out. Then if i tried to speed up it would fall on its face! I recently had it fully deleted and new timing belt and new fuel system replaced. CP3 is from a BMW. today I ordered new Bosch fuel pressure sensor and a regulator . When i got back to town it seemed to run fine but on the interstate it almost got me killed !!

 

[Tom in PT]

Have you looked for fuel leak or air in the fuel system? Is the filter completely full? When was it last changed? Pull the sensor at the top of the intercooler and see if it is gunked up.