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that is a dead short, the fuse saved you the ensuing fire.
there are 2 fuses or more... with that name..
old cars love to short things, no lie.
the fsm is the best thing to have, and alldata.com , 2nd.
the older that car the more true that is... and your car is 10x that.
a 1991
is the fuse in the cab BOX? NOT ENGINE BAY?
THE CAB FUSE , HAS these (USA cars, other are DIFFERENT)
no country stated (sigh)
ignition sw AM1
ignition sw AM2
ignitor 1
ignition coil (1 for 4cy, and 1 for v6 engine, unsaid)
on one car there is a IGN fuse 7.5 amps
and runs the ECU and main relay.
there are 3 engines, and drawing for all 3.
get the fsm and use that or login to alldata.com and hope
it covers your engine. (unstated)
22r,3vz,3F
it sounds like either the wires or module inside the distibutor take the cap off and see if you see anyting melted or any kind of bare wires you can also ohm out the wires checking the resistance that can tell you if you have and open or shorted circuit .a new or used distibutor should fix your problem
A bad something, yes. The fuse may be the primary fuse for the key switch. If it is, you would need to disconnect the key switch harness and check for a short to ground on each circuit.
I am assuming you are talking about the circuit that powers the key switch. I'm showing a fuseable link to the starter relay instead of a fuse. If it is the circuit that powers the switch, I would disconnect the switch and see if the fuse blows as each circuit is powered one at a time using a jumper wire. You can get 30amp circuit breakers that plug into the fuse slot to use while you are testing circuits. You may need a repair book or shop manual to find out what is powered by that fuse since it is most everything on the car.
It sounds like you have a short in some wiresets. Check the wires directly connected to the ignition. If this persists, without any problems with wires, I suggest checking the amperage and voltage on your battery to make sure they are at operational levels. Anything over 14.8 volts and you start to fry electrical components and... blow fuses.
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