An engine controller for engine control apparatus is configured to retard
an ignition timing, from an engine starting mode timing to a catalyst
warm-up mode timing at an idle attainment moment at which an engine
idling condition is reached, and to regulate an intake air quantity at a
prior moment prior to the idle attainment moment. Moreover, the
controller increases a fuel injection quantity by an increase quantity
during a period from the prior moment until an intake settlement moment
at which an intake air condition settles down. The controller sets the
increase quantity of the fuel injection quantity in accordance with a
parameter representing a condition of the intake air or fuel supplied to
the engine.