PCV - Overview (2013 2014 2015)

Some of the unburned gases in the combustion chamber will leak past the gap between the pistons and cylinders into the crankcase. The blow-by gases that include the unburned gases are inhaled at the positive crankcase ventilation or PCV valve and are burned. This prevents the blow-by gases from flowing into the atmosphere. In addition, the breather chamber of the cylinder block separates oil from blow-by gas, which prevents the oil from entering the combustion chamber.

2.0 L models 

Courtesy of HONDA, U.S.A., INC.

2.4 L models 

Courtesy of HONDA, U.S.A., INC.