15a engine fuse blow, car won't start

[Turbotrille]

I have this big problem with my 1jz, the car starts on IG2 position on ignition switch, but when i drop it to IG1 position the car stops and the 15a engine fuse is blown.
If i hold the key on IG2 position the car run, but it want responde on gas.

I've tried to search and search for this problem, but can't find anyone who had this same problem.

I've tested all the relays that goes to the fuel pump, and they are alright in order to the book.

Can sombody please help me with my problem?

 

[sctwinturbo]

i drop in twin warlbro pumps in my car and the 15a efi fuse keep on blowing
when i ran out of 15a fuses i put a 20a fuse in there and never had that issue again

i don't recommend you doing this ! (putting in 20a fuse in a 15a socket)
do the 12v mod with relay for the fuel pump

 

[Turbotrille]

Ok, I only had one single Walbro, but this pump is Ok, and my EFI fuse is ok, but it's the ENGINE fuse in side kick panel that blows, not EFI.

I also tried with a 20a fuse but it won't help.

 

[Supradupra.com]

The "ENGINE" fuse supplies current to the alternator regulator - could be a fault with your alternator or the wiring to it may be damaged?

Here's the link to the circuit CLICKY - it should be the same for the 1JZ charging system....

 

[Turbotrille]

Ok, and if the alternator is damaged won't the car start then?

 

[sctwinturbo]

Ok, and if the alternator is damaged won't the car start then?

good battery engine will start but with bad alternator wont keep it running
disconnect the alternator and try to start the car with only the battery
if it runs alternator was bad

 

[Turbotrille]

Oh, no I've had the alternator tested, and it had good charge, but wat I have in mind is that if the regulator in the altarnator is dead, will the car start then?
I've tried to disconnect the plug with 3 wires in, and than the car wan't start either (this I did after I get the problems, so I can't tell if it should be so).