Muri sisitemu ya MPI, inshinge zigabanyijemo amatsinda, kandi inshinge mu itsinda rimwe zifunguye icyarimwe. Kurugero, imashini ya silinderi 4 igizwe mumatsinda abiri, buri tsinda ryinshinge ebyiri, aya matsinda yombi yatewe inshinge asimburana gutera amavuta, moteri ya moteri buri cyerekezo hari itsinda ryinshinge zitera amavuta. Sisitemu yo gutera inshinge zahujwe muburyo bubangikanye, ECU gusa kumurwi umwe wabatera inshinge zose zohereza ikimenyetso kimwe, inshinge ziri mugihe kimwe cyo gufungura no gufunga, programming iroroshye koroshya uruziga rwa elegitoroniki, ariko ni kubintu bitandukanye bya moteri ibura impinduka zidasanzwe mumikorere, izabyara ikibazo cyo guhagarara kwa peteroli na gaze murwego rwo gufata.

Sisitemu ya SFI, buri inshinge ihujwe neza na ECU, muburyo bukurikira, birashobora gukorwa neza mbere gato yuko inshinge zo gufata inshinge zifungura, inshinge zirashobora gukorwa hagati yigihe cyinshinge ebyiri guhita uhindura imvange kugirango uhuze nimpinduka mubihe bitandukanye. . Kubwibyo, SFI ninzira yukuri kandi nziza yuburyo bwa sisitemu nyinshi yo kugenzura ibitoro bya elegitoronike, moteri yimodoka nyinshi zirimo gukoresha ubu buryo.