FUEL CUT CONTROL METHOD

摘要

A fuel cut control method for an engine with a secondary air introduction system having a secondary air introduction pipe connected to an exhaust pipe and an air cut valve fitted to the secondary air introduction pipe capable of preventing after-burn in the exhaust pipe when fuel is cut out in a deceleration state, comprising the steps of determining whether or not the engine is in the deceleration state in specified conditions and, in the deceleration state, feeding more fuel than normal necessary fuel flow rate during a specified period after the start of the deceleration, and cutting out the fuel after the specified period is elapsed.