Hyundai Tucson Quiz
Engine/Fuel Control System

Description and Operation

In this manual: Engine/Fuel Control System
General Information — 17Engine Mechanical System — 51Engine Electrical System — 26Emission Control System — 23Engine/Fuel Control System — 44Clutch System — 12MANUAL TRANSMISSION SYSTEM — 12AUTOMATIC TRANSMISSION SYSTEM — 42Four-Wheel Drive (4WD) System — 14Drive Shaft and Axle — 22Suspension System — 30Steering System — 16Restraint — 21Braking System — 47Body Work (Interior and Exterior) — 145Body Electrical System — 162Heating, Ventilation and Air Conditioning — 39
~1min read

Description

The Manifold Absolute Pressure Sensor (MAPS) is a density-type sensor. It is installed on the surge tank and measures the absolute pressure in the surge tank, then outputs an analog signal proportional to the pressure to the ECM. Using this signal, the ECM calculates the intake air volume and engine speed. The MAPS consists of a piezoelectric element and a hybrid IC that amplifies the output signal of the element. The element is a silicon diaphragm type and uses the pressure-sensitive variable resistance effect of a semiconductor. Because vacuum and intake manifold pressure are applied to each side of the sensor, the sensor can output an analog signal proportional to the pressure change using the silicon element.

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A quick Hyundai Tucson quiz: every answer comes with an explanation and a link to the manual page.