An internal combustion engine 1, wherein the air fuel ratio controller changes {HEAD ~ the air fuel ratio} according to {TAIL ~ a temperature} of the internal combustion engine upon completion of preheating of the internal combustion engine 
according to
An internal combustion engine 1 , wherein the air fuel ratio controller changes { HEAD ~ the air fuel ratio } according to { TAIL ~ a temperature } of the internal combustion engine upon completion of preheating of the internal combustion engine
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH