Eliminating automotive CO₂ would benefit present day efforts to clean up the air. Automotive exhaust is a challenging subject regarding elimination of all emissions. Presently CO₂ is a concern, contribuiting to global warming. This problematic gas is not presently processed on board the vehicle, although it is possible. A pre stage added to present day catalytic converter attcks the problem. Combined 1,500 degree exhaust gas passing through an electric field powerd by the vehicle, is intended to split CO₂ into C and 0₂. Onboard computer can control field strength resulting in free oxygen passing to the classic converter stage. Remaining byproducts are catalyzed as usual. Since the 1st stage may not be 100% efficient, carbon monoxide is reduced in the second stage.

Research has revealed several factors existing in high temperature exhaust can be used in a conversion process. Vehicles' electrical system provides the power to operate the converter and on board computer can controll the process, if necessary. On board CO₂ advanced converter may increase the cost of the vehicle.

Catalitic converter onboard approach was successfull in reducing hydrocarbons, carbon monoxide, and nitrates of oxygen. Adding a pre stage to the device may be a low cost approach, following a proven succesful automotive system design.