Do i have o2 sensors on my 04 marauder vz1600

O2 sensor is doing what ?

According to the RockAuto.com listing, they have different part numbers, so I would guess that they are not interchangeable.
2004 PONTIAC MONTANA 3 4L V6 Oxygen O2 Sensor RockAuto

O2 sensor acts only to trim fuel curve so it should have no affect.

Running way rich (to much fuel) Have you had the MAF sensor checked? I would also check to see if the fuel pressure regulator is operating correctly, if it's "stuck" then your pressure is way to high and that would also lead to running rich. Is the return line from the fuel rail to the gas tank open? If that's blocked/ kinked or otherwise restricting fuel flow that could give you a to rich running condition. Don't forget about the o2 sensors, but sounds like your not even getting into closed loop yet. post more details if you can

O2 sensor bank 1 sensor 1 should actually be read as: O2 sensor, bank 1, sensor 1. Meaning the first oxygen sensor (O2 sensor #1) on cylinder bank #1 (it's a Honda inline 4 -cylinder engine, so it only has one bank of cylinders; a V6 or V8 engine would have tow banks arranged in a V shape) needs to be replaced. The oxygen sensor will be threaded into the exhaust near where the manifold (or possibly threaded in at the manifold itself) with some wires coming out of it. In the photo, the O2 sensor is labelled as the air/fuel ratio sensor.

Passenger side on down pipe (exhaust pipe)

Bank 1 is driver side Sensor 1 is the o2 sensor that is in front of the catalytic converter or the one closest to the front of vehicle.

O2 SENSORS LOCATED ON THE EXHAUST MANIFOLD AND ONE EXHAUST PIPE BEFORE CATALYTIC CONVERTER.RADIO NOT SHUTTING OFF PROBLEM IN THE BCM.THE WIPERS WONT SHUT OFF.PROBLEM IN THE WIPER MOTOR OR SWITCH.IF SEAT BELT LIGHT STAYS ON YOU HAVE A ELECTRICAL PROBLEM THIS WOULD BE A DEALERSHIP FIX.

that code is from having the plugs wires reversed as you did and the o2 senors regrsitered the overload on gas emmions once you remove the battery cables for about 5 minutes and then recconect and run the engine it should be okay

remove the battery for half an hour, then reconnect it and the ecu should reset. After turning on ignition wait till all clicking and whirring stops before starting it, and check you havent dislodged the airflow meter connector on the airfilter when you did the o2 sensor, as this, or an intake air leak, is more likely to cause a stumble than the o2 sensor.