Ihe mmetụta nrụgide ikuku (ManifoldAbsolutePressureSensor), nke a na-akpọ MAP ugbu a. A na-ejikọ ya na ihe mmetụta ntinye ya na tube vacuum. Site na ibu ọsọ injin dị iche iche, ọ nwere ike ịchọpụta mgbanwe vacuum na ihe mmetụta ntinye ahụ, wee gbanwee mgbanwe nke iguzogide n'ime ihe mmetụta ahụ ka ọ bụrụ akara voltaji, nke ECU nwere ike iji dozie ọnụọgụ ọgwụ na akụkụ oge ọkụ.
N'ime injin EFI, a na-eji ihe mmetụta nrụgide ntinye achọpụta olu ntinye, nke a na-akpọ sistemụ ntinye D (ụdị njupụta ọsọ). Ihe mmetụta nrụgide ntinye achọpụtaghị olu ntinye ozugbo dịka ihe mmetụta ntinye, kama a na-achọpụta ya n'ụzọ na-apụtaghị ìhè. N'otu oge ahụ, ọtụtụ ihe na-emetụtakwa ya, yabụ enwere ọtụtụ ebe dị iche iche na nchọpụta na mmezi site na ihe mmetụta ntinye, mmejọ ahụ emepụtara nwekwara nke ya.
Ihe mmetụta nrụgide nnabata na-achọpụta nrụgide zuru oke nke ihe nrịbama nnabata n'azụ throttle. Ọ na-achọpụta mgbanwe nke nrụgide zuru oke na ihe nrịbama ahụ dịka ọsọ na ibu injin si dị, wee gbanwee ya ka ọ bụrụ voltaji mgbaàmà wee ziga ya na ngalaba njikwa injin (ECU). ECU na-achịkwa ọnụọgụ mmanụ ọkụ bụ isi dịka nha voltaji mgbaàmà si dị.
E nwere ọtụtụ ụdị ihe mmetụta nrụgide ntinye, dịka ụdị varistor na ụdị capacitive. A na-ejikarị Varistor eme ihe na sistemụ ntụtụ D n'ihi uru ya dịka oge nzaghachi ngwa ngwa, izi ezi nchọpụta dị elu, obere nha na ntinye mgbanwe.
Foto nke 1 na-egosi njikọ dị n'etiti ihe mmetụta nrụgide ntinye varistor na kọmputa. Foto nke 2 na-egosi ụkpụrụ ọrụ nke ihe mmetụta nrụgide ntinye varistor, na R na Foto nke 1 bụ ihe ndị na-eguzogide nrụgide R1, R2, R3 na R4 na Foto nke 2, nke na-emepụta àkwà mmiri Wheatstone ma jikọta ya na diaphragm silicon. Diaphragm silicon nwere ike ịgbanwe n'okpuru nrụgide zuru oke na manifold, na-ebute mgbanwe nke uru iguzogide nke iguzogide R. Ka nrụgide zuru oke dị na manifold ahụ, otú ahụ ka mgbanwe nke diaphragm silicon na-abawanye ma ka mgbanwe nke uru iguzogide nke iguzogide R na-abawanye. Nke ahụ bụ, mgbanwe igwe nke diaphragm silicon na-agbanwe ka ọ bụrụ akara eletriki, nke sekit agbakwunyere na-eme ka ọ dịkwuo elu wee pụta na ECU.
