Hyundai Azera: Barometric Pressure Sensor (BPS) Description and Operation
Fifth generation HG (2011–2026) / Hyundai Azera 2011-2026 Service Manual / Engine Control/Fuel System / Engine Control System / Barometric Pressure Sensor (BPS) Description and Operation
Fifth generation HG (2011–2026) / Hyundai Azera 2011-2026 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:
Center Fascia Panel Repair procedures
Replacement
•
When prying with a flat-tip screwdriver, wrap it with
protective tape, and apply protective tape around the related parts, to
prevent damage.
•
...
Additional safety precautions
All occupants should sit upright, fully back in their seats with their seat
belts on and their feet on the floor.
Passengers should not move out of or change seats while the vehicle is moving.
...
Fluid Repair procedures
Service Adjustment Procedure
Oil level Check
A check of Automatic Transaxle Fluid(ATF) level is not
normally required during scheduled services. If an oil leak is found, ...
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