p0191, p2195, p2197 no power truck almost dies under load

Question

p0191 fuel rail pressure sensor circuit range/performance. p02195 02 sensor signal stuck lean.

Answer 1

P0191 Fuel rail pressure sensor A circuit range performance

P2195 - 02 sensor signal  biased stuck lean  bank 1 sensor 1

P2197 -02 sensor signal biased stuck lean bank 2 sensor 1

You need a fuel rail pressure sensor, the way the fuel pressure sensor works , is when engine load requires more fuel the rail pressure gives more voltage to the fuel pump, this in turn gives more fuel to the engine as demanded.