Hyundai Sonata: Manifold Absolute Pressure Sensor (MAPS). Description and Operation - Engine Control System - Engine Control/Fuel SystemHyundai Sonata: Manifold Absolute Pressure Sensor (MAPS). Description and Operation

Description

Manifold Absolute Pressure Sensor (MAPS) is a speed-density type sensor and is installed on the surge tank. It senses absolute pressure of the surge tank and transfers the analog signal proportional to the pressure to the ECM. By using this signal, the ECM calculates the intake air quantity and engine speed.
The MAPS consists of a piezo-electric element and a hybrid IC amplifying the element output signal. The element is silicon diaphragm type and adapts pressure sensitive variable resistor effect of semi-conductor. Because 100% vacuum and the manifold pressure apply to both sides of the sensor respectively, this sensor can output analog signal by using the silicon variation proportional to pressure change.


    ETC (Electronic Throttle Control) System. Repair procedures
    Inspection Throttle Position Sensor (TPS) 1. Connect the GDS on the Data Link Connector (DLC). 2. Start the engine and measure the output v ...

    Manifold Absolute Pressure Sensor (MAPS). Specifications
    Specification Pressure [kPa (kgf/cm², psi)] Output Voltage (V) 20.0 (0.20, 2.9) 0.79 46.7 (0.47, 6.77) 1.84 ...

    See also:

    Checking the amount of air conditioner refrigerant and compressor lubricant
    When the amount of refrigerant is low, the performance of the air conditioning is reduced. Overfilling also has a negative influence on the air conditioning system. Therefore, if abnormal operation ...

    Front Seat. Repair procedures
    Replaccement Seat Assembly Replacement 1. Remove the seat assembly mounting cover. 2. After loosening the seat assembly mounting bolts, rem ...

    Sunroof. Repair procedures
    Replacement Glass Replacement - Put on glove to protect your hands. ...