Hyundai i-30: Engine Control System / Differential Pressure Valve (DPV)

Hyundai i30 (PD) 2018-2024 Service Manual / Engine Control / Fuel System / Engine Control System / Differential Pressure Valve (DPV)

Description and operation
Description
Differential pressure valve (DPV) is control the pressure difference of EGR inlet and outlet.

Specifications
Specification
[Motor]
Item
Specification
Coil Resistance (Ω)
2.85 - 3.05 [20°C (68°F)]

[Position Sensor]
Item
Specification
Operating Voltage (V)
4.5 - 5.5
Output Voltage (V)
0.25 - 4.75

Schematic diagrams
Circuit Diagram

Harness Connector

Repair procedures
Inspection
[Motor]
1.
Turn the ignition switch OFF.
2.
Disconnect the differential pressure valve connector.
3.
Check that the differential pressure valve is stuck by foreign material.
4.
Measure resistance between motor 1 and 2 control terminals of the motor.
5.
Check that the resistance is within the specification.
Item
Specification
Coil Resistance (Ω)
2.85 - 3.05 [20°C (68°F)]

Removal
1.
Turn the ignition switcg OFF, and disconnect the battery negative (-) terminal.
2.
Remove the air cleaner assembly.
(Refer to Engine Mechanical System - "Air Cleaner")
3.
Disconnect the differential pressure valve connector (A).
4.
Remove the differential pressure valve after loosening the mounting bolt (B).
Tightening Torque :
9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb.ft)

Installation
  
Install the component with the specified torques.
Note that internal damage may occur when the component is dropped. In this case, use it after inspecting.
Use care to keep foreign material out of the component.
1.
Install in the reverse order of removal.

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