The "more information" point gets stressed here... the cylinder deactivation technology currently available for the larger engines shuts down the cylinder's fuel supply, removes access to intake and exhaust via the valves, and parses the sensor signals to accommodate for the decreased airflow and other outputs.
FYI.
__________________
"¿ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"
|