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.

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

Harness Connector

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) |

|
•
| 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. |
Description and operation
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Other information:
In the OFF position, pull the lever gently
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Repair procedures
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