An engine control parameter setter sets {HEAD ~ a control parameter} for {TAIL ~ the engine} in accordance with the reference position signal and the engine operating state 
for
An engine control parameter setter sets { HEAD ~ a control parameter } for { TAIL ~ the engine } in accordance with the reference position signal and the engine operating state
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH