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Hi, How are you?I'm Shabaz, one of the automotive experts, I'm sorry you're experiencing problems with your car, I will do my best to help you today.
Is the misfire on one cylinder?
Have you removed the spark plug from the cylinder and checked to see if there is a spark there on crank?
Remove the fuel pump relay/fuse, remove spark plug from cylinder 1, connect the coil plug, rest the tip of the spark plug on a metal surface so there is a path to ground to prevent any damage and crank the engine.
It best to check the actual spark because there could be an issue with the wiring rather than the plug. You also need to check if you have power to the injector on cylinder 1, it's best to use a 12v test lamp so you can see the pulsing from the injector connector.
I hope this helps.
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If you can get to the injector connector, you can back probe the wire with a paper clip and then use a test light to see if you get a voltage pulse. Injectors are ground side switched, which means that the ECU controls the ground so, that's the wire you need to back probe.
The car will have to be diagnosed electrically using an oscilloscope. An auto electrician will be able to check the injector timing, ignition timing, crankshaft+camshaft correalation all on one computer screen and any timing issues will become obvious very quickly. It seems to be a timing issue, even if the belt has jumped one tooth on the cam sprocket, it will cause issues like this.