{HEAD ~ comparison means} for comparing {TAIL ~ said detected vale} read by said reading means with a reference value to thereby generate said misfire detection signal if said detected value is less than said reference value 
for comparing
{ HEAD ~ comparison means } for comparing { TAIL ~ said detected vale } read by said reading means with a reference value to thereby generate said misfire detection signal if said detected value is less than said reference value
HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH