I have tested the wiring it test right, I have tested the Air flow meter and replaced it but still not right.
The engine light is on and the turbo doesn't feel like it is working. has anyone got info?

Hi I checked the fuel rail pressure sensor on connector with a multimeter but the reading is fine 5v supply, linear signal volt output and sensor ground its all fine but I still ordered a new sensor by chance and changed it and since then the car is running perfect and the fault code is gone.
so how can I do another test to know if the sensor is faulty or not because after fitting the new one the output volts readings are exactly the same as the old one so If it is another test to do please let me know how to carry it out ?

gear 1,2,3 and 5 but gear 4 is working and when i try to put other Gears it make a lot of noise except gear 4 please help.