{HEAD ~ The system} 2 wherein said intake manifold temperature is varied in discrete steps corresponding to idle, {TAIL ~ part open throttle}, and wide open throttle operation 
{ HEAD ~ The system } 2 wherein said intake manifold temperature is varied in discrete steps corresponding to idle , { TAIL ~ part open throttle } , and wide open throttle operation
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH