Kia Stinger CK Quiz
Engine Control System/Fuel System

Manifold Absolute Pressure Sensor (MAPS)

In this manual: Engine Control System/Fuel System
General Information — 8Maintenance — 27Engine Mechanical System — 47Engine Electrical System — 19Emission Control System — 12Engine Control System/Fuel System — 51Automatic Transmission System — 34All-Wheel Drive (AWD) System — 7Drive Shaft and Axle — 15Suspension System — 25Steering — 8Restraints — 19Brake System — 22Body (Interior and Exterior) — 47Front Seat Belt — 63Body Electrical System — 99Windshield Wiper/Washer — 11Heating, Ventilation, and Air Conditioning — 32
6steps
~36min
2/5difficulty
0102030405011.89N·mlb·ft
Tightening torque found on this page
Done 0 of 6

Specifications

Specification

Item Specification
Output voltage (V) 5
Pressure (kPa) 32,5 - 284
Operating Voltage (V) 4,5 - 5,5

Pressure
[kPa (kgf/cm², psi)]		 Output Voltage (Vref = 5 V)
32,5 (0,33, 4,71) 0,5
70 (0,71, 10,1) 1.1
270 (2,75, 39,1) 4.3
284 (2,89, 41,1) 4,5

Description and Operation

Description

The Manifold Absolute Pressure Sensor (MAPS) is a speed-density type sensor installed on the surge tank. It measures the absolute pressure of the surge tank and sends 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 element output signal. This silicon diaphragm type element is pressure sensitive. The semiconductor variable resistor effect is used. One side of the silicon diaphragm is under 100% vacuum, and manifold pressure is applied to the other side. Therefore, the output is obtained from the change in silicon proportional to the change in pressure.

Circuit Diagrams

Wiring Diagram

Harness Connector

Repair Procedures

Inspection

  1. Connect the KDS to the Data Link Connector (DLC).

  2. Measure the MAPS output voltage at idle with the ignition switched ON.

    Pressure
    [kPa (kgf/cm², psi)]    		 Output Voltage (V) [Vref=5V]
    20,0 (0,20, 2,9) 0,79
    46,7 (0,47, 6,77) 1,84
    101,3 (1,03, 14,7) 4.0

Removal

  1. Turn the ignition switch OFF and disconnect the negative (-) battery terminal.

  2. Remove the engine cover.

    (Refer to Engine Mechanical System - Engine Cover)

  3. Disconnect the MAP sensor connector (A).

  4. Remove the mounting bolts (B) and remove the sensor from the intake manifold.

    Manifold Absolute Pressure Sensor Mounting Bolt:

    9,8–11.8 N·m

Installation

  1. Install in the reverse order of removal.

Test yourself

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