Carbon monoxide (CO) is a highly toxic gas produced when fuels burn incompletely. The typical internal combustion engine used in most cars and trucks, can produce extremely high concentrations of carbon monoxide. Changes in engine design, fuel, and emission control devices have dramatically reduced the emissions of carbon monoxide. Diesel Particulate Filter Regeneration. The primary reason for soot removal is to prevent the buildup of exhaust back pressure. Excessive back pressure increases fuel consumption, reduces power output, and can potentially cause engine damage. Several factors can trigger the diesel PCM to perform regeneration, including:
One by-product of combustion is carbon, the black soot that can collect and harden on the cylinder head, cylinder wall, piston and valves. Carbon deposits in the combustion chamber can affect engine performance, resulting in higher oil consumption, engine knocking or overheating.