St191 30 amp am2 circuit keeps blowing

Your not resetting anything

Your clearing all data-never do that

Get yourself a wiring diagram & work the
ignition,starter & fuel circuits-- to find a problem

It will be a dead short causing the fuse to blow. It could be in the starter motor or associated solenoid. Or in the glow plug relay circuit. Disconnect the glow plugs from the power wire to ensure they are not causing it, they probably wont be. N try to find the relay that operates them and un plug that. It will become a process of elimination. I hope that helps

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

Could be a short circuit on ignition wires or a broken ignition switch. Or a short circuit on starter wires or inside the starter motor itself.

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.

( one question i have is every time the ignition fuse blows do i need to replace the starter relay? ) NO ! You have a dead short to ground on one of the circuits that fuse feeds. Do you know how to find a short circuit ? Video's on youtube show how. The fuse that blows ,is it IGN - A 40 amp. located in the under hood fuse/ relay center ? That fuse feeds B+ voltage to the ignition switch ,which powers up other thing's ,fuse's etc.. Not just the starter relay ! I see five other fuse's that get power from that fuse when ignition switch is in the start or run position . In the I/P fuse panel the gauges fuse #4 10amp , air bag fuse #10 10amp , turn b/u fuse #16 20amp. , Plus trans fuse #20 10 amp ! Pull out these fuse an try to start the van. if the ignition fuse doesn't blow the problem is in one of these other fuse circuits. There is one more fuse that get's B+ power from the ignition switch and ign A fuse ,crank fuse fuse #8 10amp. this powers the control side of the starter relay .
You can find a free wiring diagram here http://www.bbbind.com/free_tsb.html Enter vehicle info. year , make , model and engine . Under system click engine , under subsystem click starting. Click the search button then the blue link.
If you pull those fuse's i mention and it still blows the fuse look for a shorted ignition switch or wiring from ignition to the starter relay , not the relay itself. Park neutral safety switch . Isolate the circuit , pull the relay out of it's socket ,pull the crank fuse #8 in the I/P fuse box. with a ohm meter check to see if that part of the circuit is shorted to ground. Do you know how to do that ? Do you have a volt ohm meter ? You can buy one cheap at parts store .

I would disconnect the noise filter located by the ignition coil/ignitor, have seen them short out and cause the AM2 fuse to blow. Also Disconnect coil, dist and see if short goes away

you have a SERIOUS electrical problem. - '.
BUT which fuses keep blowing - that is where we need to start.
1. is it the ignition circuit. - - does starter motor turn over when you trun the key.
2. is it the starter relay circuit.
3. is it the starter motor circuit.
4. is it the computer circuit. - - do you have fuel pumping to the engine and cylinders.
5. none of the above. - - do you have spark at the spark plugs.

check the battery cables for wear and make sure they aren't grounding out on the frame you have a direct short and that is more than likely where it is

If the fuse blew at once, then you have an electrical short. Try disconnecting power lead to start, cover with insulating tape/electrical tape, put new fuse in place, and attempt to "start". if fuse does not blow then the starter motor has an internal fault, replace starter and enjoy. Keep me posted as you perform these tests.