blown EFI fuse

[badchezk]

I have a 1996 toyota previa all-trac
and everytime I turn the key on the EFI fuse blows
dose anyone know what might be causing this.

Thanks

[Toysrme]

Yeah, something electrical is shorting the EFI fuse.

[sleepr]

look for a short betwen the efi fuse and the computer, or you can pull the efi fuse, take a multi meter find out were the efi fuse plugs in is the hot side and witch side gose to the computer and check for resistance betwen the computer side and the ground

[CraigW]

Have you done any electrical work or additions lately ?? A good device to use for locating a dead short is a small bulb in place of the removed fuse that is blowing as long as the short is present the bulb will light at full brightness, If the short is located and isolated the bulb will dim way down and you can install the fuse back in place and test.

[sleepr]

good idea