Sounds like a bad case of bad fuel.

Water in the fuel will cause this.

Or, you may have picked up trash from the station tank and now have plugged one or more injector.

You have some work to do.

One way or another, I would start out by removing the fuel currently in the tank and replacing it with known good fuel.

I would check, clean or replace fuel filters.

If good fuel in the tank and clean filters do not fix it, I'd start looking for plugged injectors.

Good luck

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