2002 Jeep Liberty Misfire with P0201, P0205, P0203, P1281, P0141, P0161, and P0175 Codes - Low Idle, Stalling, Fuel Smell

Hello, I have a 2002 Jeep Liberty Limited with 205,000 miles. The vehicle starts fine when cold but exhibits a very low, chugging idle that worsens as it warms up. Once the engine reaches operating temperature, it stalls or shuts down during slow driving and cannot maintain an idle after stopping. I have to rev the engine manually to keep it running. There is a strong smell of burning fuel and oil mixing together. I've already replaced the spark plugs—both old ones were black, and new ones turned black again within 24 hours; one plug has a noticeable gas odor. The exhaust emits a gasoline-like smell, and when the engine starts, it spits out visible fuel residue on my hands (indicating excessive fuel delivery). The vehicle is throwing several diagnostic trouble codes: P0201, P0205, P0203, P128-1, P0141, P0161, and P0175. I've also noticed a small hole in one catalytic converter located near the manifold—likely due to age. I’ve had two mechanics inspect it. The throttle position sensor was replaced recently (it previously triggered a code), and that code has since cleared. One ignition coil has been replaced, specifically the one associated with the gas-smelling spark plug. Wiring appears intact, but no one has tested the catalytic converter or evaluated injector performance. I’m at a loss as to what’s causing this issue—could it be related to fuel injectors? A faulty sensor? Or is the damaged cat converter contributing to the problem? Any guidance on where to start would be greatly appreciated.