I-valve ye-Delphi eqhelekileyo yokulawula i-injector ye-YS inesakhiwo esilula, ubunzima obulula kunye nokusetyenziswa kwamandla aphantsi. Umzuzu wokuvula kunye nexesha lokuvula i-valve yokulawula inokulungiswa njengoko kufuneka. Ngale ndlela, ukuvulwa kunye nesantya sokuvala i-valve yenaliti inokulawulwa ngokuguquguqukayo, ubuninzi be-injection ye-fuel bungatshintshwa kuluhlu olubanzi, kwaye umthetho we-injection ye-injector ye-fuel ungatshintshwa.