Engine just tripped a P1355 and P1353 code that has engine shaking violently only at low RPM?

First thing I'd check is the connectors, the pigtails brittle with age, and oil or moisture intrusion can cause high resistance or shorting in the primary ignition circuit.

Check the electrical connectors going to Coils 2 and 4. Look for cracked insulation, corrosion, melted plastic, or oil sitting in the wells.

Verify that the ignition coils are receiving constant 12V power with the key on (engine off).

Check the switched ground pulses from the PCM using a test light or multimeter while cranking/running to see if the PCM is successfully firing that primary circuit.

Perform the above and let me know the results and we can continue from there if needed.