Ford F150 2004 4.2L codes.

My walk has a malfunction when you accelerate strength, it trembles.
My cousin has a scanner and the following codes appear: P0303, P1131, P0135, P0155, P0171, P0174. I changed the oxygen sensor but it remained the same. Change gasoline filter and clean injectors. What ago? Ford F-150 6cil. 4.2L 2004-.

If I remember correcting the P0303 code is a combustion failure in cylinder number 3, P1131 is an oxygen sensor Mescla poor sensor 1, p0155 is oxygen sensor 2, p0171 Poor mixture bench 1, p0174 is a poor mixture 2 bench 2, for me you have to revive air leaks in the admission system or strangulation of one of its mangains the pulls and the departure low.

I only found a folded gasoline return hose is the suck

The P135 is Code of the Oxygen Sensor of Bank 1, it would be good to saver if your sensors are working or if your Catalitical is very obstructed, but I insist on my air hose theory, check if the sensors work and if they are saturated

Check all the systems by disconnecting injectors 3 and 4 there was no change so they lent me a tester and never flash in these injectors. The signal does not reach the injectors. Change the oxygen sensor and the problem persisted, can it be that the computer does not detect them?