14. Vgt Test - Navistar International DT 466 Diagnostic/Troubleshooting Manual

14. VGT Test

Figure 329
Purpose
To determine if EBP and MAP change, as VGT control
changes
This is a manual test that allows the technician to set
VGT duty to low, medium or high.
Tools
• EST with MasterDiagnostics® software
• EZ-Tech® interface cable
Procedure
WARNING: To avoid serious personal injury,
possible death or damage to the engine or
vehicle, read all safety instructions in the "Safety
Information" section of this manual.
NOTE: The KOER VGT Test can only be done with
the EST using MasterDiagnostics® software.
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
6 PERFORMANCE DIAGNOSTICS
Figure 330
1. With
Figure 331
2. Select Diagnostics from the menu bar.
3. Select Key-On Engine-Running Tests from the
EGES-270-1
Follow all warnings, cautions, and notes.
© August 2008 Navistar, Inc.
VGT session
the engine
D_KOER_AirManagement.ssn
open session file window and select OPEN to
open the session. Monitor EBP and MAP at low,
medium, and high duty cycle.
drop down menu.
253
running, select
from the