The ECU determines the level of {HEAD ~ the actual hydraulic pressure} given to {TAIL ~ the VVT} 
given to
The ECU determines the level of { HEAD ~ the actual hydraulic pressure } given to { TAIL ~ the VVT }
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL