Hyundai Elantra: Engine Control System / Boost Pressure Sensor (BPS)

Hyundai Elantra (CN7) 2021-2025 Service Manual / Engine Control / Fuel System / Engine Control System / Boost Pressure Sensor (BPS)

Description and operation

Description

Boost pressure sensor (BPS) is installed on top of intercooler output pipe to measures the pressure of supercharged air in the turbocharger.

Specifications

Specification

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

Circuit Diagram

Harness Connector

Repair procedures

Inspection

1.	Connect the diagnostic tool on the Data Link Connector (DLC).

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

Removal

1.	Turn ignition switch OFF and disconnect the battery negative (-) terminal.

2.	Disconnect the boost pressure sensor connector (A).

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)

Installation

•	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.

Engine Control Module (ECM)

S..

ETC (Electronic Throttle control) System

Description and operation DescriptionThe Electronic Throttle Control (ETC) System consists of a throttle body with an integrated control motor and throttle position sensor (TPS)...

Other information:

Hyundai Elantra (CN7) 2021-2025 Owner's Manual: Manual adjustment

The front seat can be adjusted by using the levers located on the outside of the seat cushion. Before driving, adjust the seat to the proper position so that you can easily control the steering wheel, foot pedals and controls on the instrument panel...

Hyundai Elantra (CN7) 2021-2025 Service Manual: Components and components location

Component Location[Engine Room]1. Engine room junction block[Interior Relay]1. ICU (Integrated Central Control Unit)..

Tire Rotation

To equalize tread wear, HYUNDAI recommends that the tires be rotated according to the maintenance schedule or sooner if irregular wear develops.

During rotation, check the tires for correct balance.

When rotating tires, check for uneven wear and damage. Abnormal wear is usually caused by incorrect tire pressure, improper wheel alignment, out-ofbalance wheels, severe braking or severe cornering. Look for bumps or bulges in the tread or side of the tire. Replace the tire if you find any of these conditions. Replace the tire if fabric or cord is visible. After rotation, be sure to bring the front and rear tire pressures to specification and check lug nut tightness (proper torque is 79~94 lbf·ft [11~13 kgf·m]).