An engine control apparatus can significantly improve reliability in misfire detection by preventing erroneous detection of the level of {TAIL ~ an ion current} due to {HEAD ~ noise superposition} 
An engine control apparatus can significantly improve reliability in misfire detection by preventing erroneous detection of the level of { TAIL ~ an ion current } due to { HEAD ~ noise superposition }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD