Hyundai Genesis: Engine Control System / Barometric Pressure Sensor (BPS) Description and Operation
Barometric Pressure Sensor (BPS) is a speed-density type
sensor and is installed on the air cleaner assembly. It senses absolute
pressure of the air cleaner assembly 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 one side of the silicon diaphragm is 100% vacuum
and the other is affected by the manifold pressure, this sensor can
output analog signal by using the silicon variation proportional to
pressure change.

Inspection
If idle rpm is unstable or engine stops, check the ETC module operation with GDS diagnostic tool.
And if necessary, clean carbon in the throttle body.
1.
Connect the GDS to the Data ...
Specification
Pressure (kPa)Output Voltage (V)10.00.5055.02.21100.03.93115.04.50
...
Other information:
The Engine Start/Stop button must
be in the ON position before you can
open or close the sunroof.
✽ NOTICE
In cold and wet climates, the sunroof
may not work properly due to freezing
conditions.
WARNING
Never adjust the sunroof or sunshade
while driving. This could
result in loss ...
Replacement
1.
Loosen the wheel nuts slightly. Raise the vehicle, and make sure it is securely supported.
2.
Remove the rear wheel and tire from the rear hub.
Be careful not to damage the hub bolts when removing the rear wheel and tire.
3.
Remove the split pin, t ...