258 6 PERFORMANCE DIAGNOSTICS
17. Test Drive (Full load, rated speed)
Monitorthe followingparametersduring one test drive:
• Boost Pressure using EST
• Fuel Pressure using EST (optional, or mechanical
gauge)
• ICPandBCPusingEST
Monitoring Engine Parameters using EST and
Fuel Pressure Gauge
Figure 336
Figure 337
Figure 338
Purpose
To verify engine performance at full load and rated
speeds by means of maximum boost, minimum fuel
pressure, and m inimum injection c ontrol pressure
Tools
• EST with MasterDiagnostics® software
• EZ-Tech® interface cable
• Fuel Pressure Gauge
• Fuel Pressure Test Adapter
• Fuel/Oil Pressure Test Adapter
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: If an EST is not available, use the Fuel
Pressure Gauge setup in this procedure with the
alternative procedure for testing boost pressure
(MAP), inject i on control pressure (ICP), and brake
control pressure (BCP) if equipped.
1. See “DT 466 Performance Specifications” –
Appendix A (page 595) or DT 570 and HT 570
Performance Specifications” – Appendix B (page
619) for specifications and record on Diagnostic
Form.
EGES-270-1
Read all safety instructions in the "Safety Information" section of this manual before doing any proced ures.
Follow all warnings, cautions, and notes.
©August 2008 Navistar, Inc.
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