No my truck keeps blowing the HEGO fuse and I dont know what is causing it or what i need to do to fix it when it blows the truck loses power when starting off from a stop has a skip when starting also the air condition stops being cold But when i replace the fuse it runs back normal for bout 5 mins then blows again someone said it is a O2 sensor but i dont know which one please help

dead short after the fuse
isolate each item that the fuse runs until you find the faulty unit

I would think that either the power wire feeding the pump or the pump itself is grounded and causing the fuse to blow. Pulling the injector relay is opening the circuit and not feeding power to the pump would be why it doesn't blow the fuse when it is removed.

fusee blow because of excess current caused by a short either in the wires after the fuse or in the equipment that the fuses controls.

all trans.codes check harness going to trans and o2 sensors sounds pinched

You have a short circuit somewhere in the wiring. Either a cut or bare wire. If not, the headlamp is causing the short. Last resort, use a higher amp fuse (but this may compromise wiring system).

Fords require the fault to be present for two ignition cycles before it will turn on the check engine light. Unplug all the O2 sensors and then replace the fuse. If it stillbloys than you know the problem is in the vehicle harness. If it doesn't blow plug the O2 sensors in one at a time until the fuse blows. Replace that sensor. Posting the actual code or codes that are present would also be a good idea. Let me know if you have any questions and I'll do my best to answer them. Thank you for using FixYa.com!

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

it has to do with a short in the wiring so you can use a multimeter to see where the short is at. make sure you use the multimeter properly so you do not blow the multimeter. you can buy one at wal mart around 20 dollars or so.

DASH HAS A SHORT CIRCUIT.DASH NEED REPLACING BUT CHECK FOR SHORTS IN THE WIRES TO DASH.DONT PUT A LARGER AMP FUSE IN A CIRCUIT TO KEEP FROM BLOWING FUSE BECAUSE IF FUSE DONT BLOW WIRES GET HOT IN THE CIRCUIT THAT HAS A SHORT IN IT AND CAUSE A CAR FIRE.

Are you using the same power feed from the old radio? If so, your new radio may require a higher current fuse. Check the manufacturers information the came with the custom radio and make certain the current (amps) required is the same.
If the new radio has a higher power amplifier for increased audio, it will blow a low rated fuse.
On the other hand, it sounds as though you may have pinched the power feed wire in the radio bracket, trim cover or have it resting agaist a sharp bracket. So when you put the car in drive, the dash flexes enough to cause the short.
Does it blow the fuse when you shift to reverse?
let me know.
Regards,

-if your fuses are blowing
-the problem is in the wiring
-because if too much amperage flows through the fuse will blow
-there's probably a short to ground somewhere or high resistance after the fuses causing it to draw more amps