Hyundai Azera: Barometric Pressure Sensor (BPS) Description and Operation
Fifth generation HG (2011–2025) / Hyundai Azera 2011-2025 Service Manual / Engine Control/Fuel System / Engine Control System / Barometric Pressure Sensor (BPS) Description and Operation
Fifth generation HG (2011–2025) / Hyundai Azera 2011-2025 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
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 voltage of TPS 1 and 2 at C.T. and W.O.T.
Throttle ...
Barometric Pressure Sensor (BPS) Specifications
Specification
Pressure [kPa (kgf/cm?, psi)]Output Voltage (V)10.0 (0.01, 0.15)0.5055.0 (0.56, 7.98)2.21100.0 (1.01, 14.5)3.93115.0 (1.17, 16.9)4.50
...
See also:
Filter inspection
If the vehicle is operated in the severely air-polluted cities or on dusty rough
roads for a long period, it should be inspected more frequently and replaced earlier.
When you, the owner, replace th ...
Valve Body Repair procedures
Removal
1.
Remove the battery and the battery tray.
(Refer to Engine Electrical System - "Battery")
2.
Remove the under cover (A).
Tightening torque:
7.8 ~ 11.7 N.m (0.8 ~ 1.2 kgf.m, 5.7 ...
Connecting an External Device
External audio players (Camcorders, car VCR, etc.) can be played through a dedicated
cable. ...
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