1jz swapped mk3 supra keeps poping the ignition fuse 7.5a both ecu fuses 15a

[90-1jzsupra]

ok i was driving down the road and car dies i pull over try starting the car and realize my fuel pump wasn't turning on checked fuses efi fuse was blown replace it everything is fine starts right up bout 10 mins of driving car shuts off again but this time i loose all my dash lights as well the 100a alt fuse melted and it blew almost all the fuses in my kick panel fuse box replace them all and every time i turn the ignition to ON position the ignition fuse and ecu fuses immediately pop Ive unhooked the igniter ecu and even the body harness plugs and Ive removed the alternator and unplugged the 2 connectors wired into the c1 plug of my mk3 the fuses still pop soon as i turn the key to ON car has been a running 1jz for a week with no problems now this poped up out of nowhere thanks in advance

 

[te72]

Check for shorts in the wiring, and check all of your grounds. Might be missing some punctuation in there somewhere too.

 

[hvyman]

Ya. Could be the harness for the fuse box. Have a short somewhere.

 

[90-1jzsupra]

I figured it out was bad connection to the fuel pump. thanks for the help!