you may have a lean mixture situation possible caused by broken vacuum hose connection or intake gasket, possibly even a crack..
check all hoses especially the ones going to the PCV, they often get brittle and crack..
[COLOR="Blue"]2008 suzuki SX4 sport sedan 5spd FWD[/COLOR]
[COLOR="Blue"]2007 suzuki boulevard C50 SE
2001 suzuki swift 1.3 5spd blue[/COLOR]