Fuel system fuse blowingI

You have a Chrysler , dodge , or Plymouth ? ASD Fuse supplies power to ASD relay ,if you have a Dodge , Chrysler or Plymouth vehicle . You have a short to ground , videos on you tube , how to find a electrical short ! ASD - auto shut down , this powers Ignition system , fuel injectors , O2 sensors . A short in any one of these systems will blow the fuse . O2 sensor wires get melted on exhaust pipes an manifolds ! That is if you have one of these make vehicles !

Year/make/model???

First, the ground wire coming from the fuel pump needs to be checked for proper grounding. Next the fuel pump power supply wire needs to be checked for chafing or exposed wiring that could short out. If all checked out well, you may need to update the fuel pump harness that plugs to the pump. It comes with a bigger gauge wire to handle the electrical load without popping fuses. This was common on these.

Which fuse ? Number an amp rating .

Whatever the fuse is connected to is Hooked up wrong and it is creating a short which blows the fuse! Good luck

Normally fuse blows off if more current passes through it than what it is designed for.

Probably it is worth checking what original fuel pump fuse amps requirements and have the same installed.

Also check the relay if there is a relay set for the fuel pump.

Good luck

you need to have the engine coolant switch checked,since the computer relies solely on sensors,the ect tells the computer how cold or hot it is so the computer will make it a rich or lean mixture to start the engine,if it tells the computer that it is 75 degrees the computer will lean the mixture like starting a car in the winter without a choke.

Sounds like a dead ground to the fuel pump.
This could be dangerous if the bare wire is in the fuel tank.

The fuel pump is most likely "going bad" -- the motor winding is begining to short and pulling too much current.

Charlie

Your fuel pump is internally binding and causing the fuse to blow. Change the pump (and filter while you're back there.)