94 previa EFI FUSE BLOWN

I Have A 94 Previa,every Time I Turn On The Ignition Switch It Blows My Efi Fuse.if Anybody Can Help Me On What To Do I Appreciate Any Advice. I Changed The Ignition Coil And It Worked Well For 2 Days, And Then Broke Down Again .main Relay,circuit Opening Relay,and Fuel Pump Appear To Be In Good Condition .if I Disconnect The Igniter Plug Or The Ignition Coil Plug And I Put A New Fuse On,when I Turn On The Ignition Switch It Does Not Blow The Fuse.my Question Is, Could It Be That The Igniter Is No Good?

Could be the igniter or the connections and wiring going to it.

check your auto oiler....it is connected through a relay on the efi circut...it can blow the fuse, mine will on very cold mornings....you can hear the oiler start to work and then the fuse pop....:-(....