Hello already change the fuel pump but ist workin what i need to do plis help me

Hello Patrick ,check fuel pressure at fuel rail and also fuel pressure regulater and vacuum to it

check fuse is there power if yes change pump, if no replace if ok ur done if blows again replace as pump is fauilty

ist very rare that the relays goes bad its gonna be you fuel pump itself

make sure ist on the coil or you might have to get a new one or ist not workin

fuel pump relay is not under the dash ist with the fuses under the black cover the # on it is 103.

you stated you changed the cam pos. sensor, meaning it must be a 7.3 or 6.0 turbo diesel. These engines are extremely sensitive to low fluid levels and failing sensors, first i will suggest for you to check and top off all fluids wich include antifreeze and oil above all. if those are within range, proceed to check the injector control pressure sensor located in the driver side of the engine towards the front.

check to see if there is power to the pump. If there is then the pump is bad which is a common problem

have you checked fuel pump relay if so and workin then it is fuel pump

Have checked the fuel pump fuse how about the main relay. Have you tried checking and testing that? If you need instructions on how to test it let me know.

When you turn the key to access. II You hear the fuel pump run if you listen through the gas cap.

If the fuel pump is working I wouldnt assume it is a has problem yet.
I would start by checking spark make sure you are getting spark. Then make sure you are getting air. I would undo the intake pipe at the throttle body.

Once you done this let me know what happens.

Open hood and listen for vacuum leak sound. pcv hose is most likley cause.

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/terry_db4da071b7da3ac1