Engine is running way to rich, I replaced rotor and cap, spark plugs, and o2 sensor. Idle is running low. The cars engine was swap by previous owner and now has a f22b, which was from a jdm 92-96 prelude si. The computer was swapped and not sure what causing the poor performance. Checked timing, spark on the wires, air/fuel mixture screw, timing belt, valves, so I'm out of ideas, anyone with any suggestions???