MAP firikwensin (matsi mai yawa / matsin lamba)

Ana amfani da MAP (Manifold Absolute Pressure, wani lokacin kuma ana kiranta Manifold Air Pressure) firikwensin don auna matsin lamba (bene) a cikin yawan cin abinci. Na'urar firikwensin tana watsa bayanai zuwa sashin sarrafawa (ECU), wanda ke amfani da wannan bayanin don daidaita sashin mai don mafi kyawun ƙonewa.

Wannan firikwensin galibi yana cikin abubuwan ci da yawa a gaban bawul ɗin maƙura. Domin bayanan firikwensin MAP su kasance daidai gwargwado, ana buƙatar firikwensin zafin jiki, saboda fitowar MAP firikwensin ba a biya diyya zafin jiki (wannan shine bayanan matsin lamba kawai). Matsalar ita ce canjin yanayi ko kuma canjin yanayin zafin iskar da ake sha, a duka biyun yawan iskar yana canzawa. Yayin da tsawo ke ƙaruwa, haka kuma zafin zafin iskar da ake sha, yawansa yana raguwa, kuma idan ba a yi la’akari da waɗannan abubuwan ba, ƙarfin injin yana raguwa. Ana warware wannan ta hanyar rama zafin zafin da aka ambata, wani lokacin tare da firikwensin MAP na biyu wanda ke auna matsin yanayin yanayi. Haɗin MAP da MAF firikwensin shima ba kasafai ake amfani da shi ba. Na'urar haska iska mai yawa, sabanin MAP firikwensin, tana auna yawan adadin iska, don haka canjin matsin lamba ba matsala bane. Bugu da ƙari, iska na iya kasancewa a kowane zafin jiki, kamar yadda akwai diyyar zafin jiki a fita daga waya mai zafi.