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Nexon Gasoline – EMS ECU Bosch
DTC Troubleshooting Manual
Version: 0.1
Date: 26-08-2017
Prepared By: Sunu S Babu/Yogesh Jadhav
Checked By: Yeshwant Jadhav
Approved By: Satish Kumar
Document Part No: 2921 02 224 A1736
Page: 454 of 1203
Copyright ©
TATA MOTORS Ltd.
This document must not be used in any way, such as copying and redistributing to third parties, without the consent of author.
Connector View & Information: -
Waste gate valve
A
wastegate
is a valve that diverts exhaust gases away from the turbine wheel in a turbocharged engine system.
Diversion of exhaust gases regulates the turbine speed, which in turn regulates the rotating speed of the compressor.
The primary function of the wastegate is to regulate the maximum boost pressure in turbocharger systems, to protect
the engine and the turbocharger.
Waste Gate Valve is controlled by EMS ecu by a PWM signal.
Pressure vs Duty Cycle characteristics
:
Stand Alone Diagnosis:
Measure the resistance across the Waste Gate valve terminals at room temperature; it should be 23 +/- 1.2 ohms.