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

Hyundai i30 (PD) 2018-2025 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.

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).

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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