not easy to diagnose away from the car, but I’ suggest
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checking each injector is getting a the right signal, using a noid inline with each injector
https://www.amazon.com/ABN-Deluxe-Injector-Tester-10-Piece/dp/B07QCD5CK8 -
stuck injectors is a very possible reason, , you can check if the ones on the dead cylinders click a they should (using an stethoscope) (easier than swapping them with working ones)
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in the same line of tests, check all plugs get good signal, either with an in-line tester between the plug and wire, or a pen shaped tester like
https://www.amazon.com/Lisle-19380-Spark-Tester/dp/B0002STS3U:
iirc, injectors are grouped, ie get the same signal in groups of 3 or 4, so you may have a partial damage affecting one or 2 groups ?
more detail on this thread
https://forums.jag-lovers.com/t/proper-wiring-diagram/400436/12