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Hello, my name is***** the front oxygen sensors and let me know if that helps it run any better. Thanks.
They are on/below the exhaust manifolds, here are pictures. You are trying to unplug the bank 1 sensor 1 and bank 2 sensor 1 sensors.
You could even start with just bank 2 since that is side running rich.
Next step I'd do is check compression and vacuum to see if you have a possible valve problem. Verify engine vacuum is 19-21 inches and the Manifold Absolute Pressure (MAP) sensor voltage is 0.85-0.95 at a warm idle. If voltage is high that means vacuum is low, let me know. Thanks.
If there is a valve problem or timing is off and bank 1 isnt able to fire correctly then unplugging coils wouldn't make a difference. You can also verify spark is good on that side of engine before checking vacuum.