Hyundai Kona: Engine Control System / Manifold Absolute Pressure Sensor (MAPS) Description and operation

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 outp ...

Manifold Absolute Pressure Sensor (MAPS) Specifications

Specification Pressure [kPa (kgf/cm², psi)] Output Voltage (V) 32.5 (0.33, 4.71) 0.5 284 (2.90, 41.19) ...

Other information:

Hyundai Kona (OS) 2018-2025 Owners Manual: Indicator lights
When the ignition switch is in the ON position, the ESC indicator light illuminates, then goes off if the ESC system is operating normally. The ESC indicator light blinks whenever the ESC is operating. If the ESC indicator light stays on, your vehicle may have a malfunction with the ESC system. W ...

Hyundai Kona (OS) 2018-2025 Service Manual: Water pump Repair procedures
Removal 1. Loosen the drain plug (A), and drain the engine coolant. Remove the radiator cap to drain with speed. (Refer to cooling system - "Coolant") 2. Remove the drive belt. (Refer to Timing System - " ...