Kia Sedona: Barometric Pressure Sensor (BPS) Description and Operation - Engine Control System - Engine Control / Fuel System - Kia Sedona YP Service ManualKia Sedona: Barometric Pressure Sensor (BPS) Description and Operation

Third generation YP (2014-2026) / Kia Sedona YP Service Manual / Engine Control / Fuel System / Engine Control System / Barometric Pressure Sensor (BPS) Description and Operation

Description
Barometric Pressure Sensor (BPS) is a speed-density type sensor and is installed on the air cleaner assemby. It senses absolute pressure of the air cleaner assemby 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 BPS consists of a piezo-electric element and a hybrid IC that amplifies the element output signal. The element is silicon diaphragm type and adapts pressure sensitive variable resistor effect of semi-conductor. Because one end of the silicon diaphragm is 100% vacuum and the manifold pressure applies to the other end, the sensor output can be achieved in analog signals from the silicon variation proportional to pressure change.

Barometric Pressure Sensor (BPS) Specifications
Specification Pressure [kPa (kgf/cm², psi)]Output Voltage (V) [Ref=5V]10.0 (0.01, 0.15)0.5055.0 (0.56, 7.98)2.21115.0 (1.17, 16.9)4.50 ...

Barometric Pressure Sensor (BPS) Schematic Diagrams
Circuit Diagram ...

Other Information:

Repair procedures
Removal 1. Disconnect the negative (-) battery terminal. 2. Remove the steering wheel. (Refer to Steering System - "Steering Wheel") 3. Remove the steering column upper and lower shrouds ...

Vapor Hose and Fuel Filler Cap Repair procedures
Inspection Vapor hose 1. Check all the clamps for tightness and the connections for leakage. 2. Visually check the vapor lines and hoses for cracks, leaks, loose connections, or deformation. ...

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