Component Location
General Description

VGT(Variable Geometric Turbocharger) is the device which increases the efficiency of turbocharger at low rpm and lasts optimum turbo efficiency at high rpm as varying the cross sectional area through which exhaust gas passes turbocharger impeller. It relieves turbo lag at low speed and increse engine power generation.

Engine speed, APS signal, MAFS and Boost pressure sensor information is inputted to ECM.

ECM actuates vacuum diafragm which controls exhaust gas line as controlling VGT Control solenoid valve duty to maintain optimum state of air compression.

DTC Description

P0047 is set when "0"A is detected in VGT actuator control circuit for more than 1 sec.. This code is due to open or short to ground in VGT actuator circuit, or open in VGT actuator component.

DTC Detecting Condition

Item

Detecting Condition

Possible Cause

DTC Strategy

● Signal monitoring

● VGT actuator circuit

● VGT actuator component

Enable Conditions

● IG KEY "ON"

Threshold Value

● Short to GND

● Wiring open

Diagnostic Time

● 1 sec.

Fail Safe

Fuel Cut

NO

EGR Off

YES

Fuel Limit

YES

MIL

OFF

Specification

VGT Actuator Component Resistance

VGT Actuator Operating Hz

VGT Actuator Operating Duty

14.7 ~ 16.1Ω (20℃)

300Hz

76% at idle, decreases as accelerating

Schematic Diagram
note
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Signal Waveform
Яндекс.Метрика