Hyundai Elantra: Engine Control System / Boost Pressure Sensor (BPS)
Description and operation
Boost pressure sensor (BPS) is installed on top of intercooler output pipe to measures the pressure of supercharged air in the turbocharger.
![](images/boost_pressure_sensor_bps_-3377/3259/sbdfl9090d.gif)
Specifications
Pressure
[kPa (kgf/cm², psi)]
|
Output Voltage (V)
[Vref = 5.0V]
|
10 (0.10, 1.45)
| 0.5
|
40 (0.40, 5.80)
| 0.91
|
80 (0.81, 11.60)
| 1.47
|
120 (1.22, 17.40)
| 2.02
|
160 (1.63, 23.20)
| 2.57
|
200 (2.03, 29.00)
| 3.12
|
220 (2.24, 31.90)
| 3.4
|
240 (2.44, 34.80)
| 3.67
|
280 (2.85, 40.61)
| 4.22
|
300 (3.05 43.51)
| 4.5
|
Schematic diagrams
![](images/boost_pressure_sensor_bps_-3377/3259/scnfl13335l.gif)
Harness Connector
![](images/boost_pressure_sensor_bps_-3377/3259/sosfl00051d_n.gif)
Repair procedures
1. | Connect the diagnostic tool on the Data Link Connector (DLC). |
2. | Measure the BPS output voltage in IG ON and idle.
Pressure [kPa (kgf/cm², psi)]
| Output Voltage (V) [Vref = 5.0V]
| 10 (0.10, 1.45)
| 0.5
| 40 (0.40, 5.80)
| 0.91
| 80 (0.81, 11.60)
| 1.47
| 120 (1.22, 17.40)
| 2.02
| 160 (1.63, 23.20)
| 2.57
| 200 (2.03, 29.00)
| 3.12
| 220 (2.24, 31.90)
| 3.4
| 240 (2.44, 34.80)
| 3.67
| 280 (2.85, 40.61)
| 4.22
| 300 (3.05 43.51)
| 4.5
|
|
1. | Turn ignition switch OFF and disconnect the battery negative (-) terminal. |
2. | Disconnect the boost pressure sensor connector (A). |
3. | Remove the sensor (B) after remove the mounting bolt. Tightening Torque : 9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft) |
![](images/boost_pressure_sensor_bps_-3377/3259/sdnfl02070d.gif)
|
•
| Install the component to the specified torques. |
•
| Note that internal damage may occur when the component is dropped. If the component has been dropped, inspect before installing. |
•
| Insert the sensor in the installation hole and be careful not to damage it. |
|
1. | Install in the reverse order of removal. |
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