7 ELECTRONIC CONTROL SYSTEMS DIAGNOSTICS 299
DTC 361 – VGT control input (EBP) above or below desired level
DTC 361 is set when the ECM detects an in range error in the EBP signal.
Possible Cause Comment
High intake restriction
Do “Performance Diagnostics” (page 205).
Intake / CAC system leak (pipes, loose
clamps, hoses)
Do “Performance Diagnostics” (page 205).
BAP sensor bias
Check sensor signal voltage. See “BAP Sens or” (p ag e 3 14).
MAP sensor bias
Check sensor signal voltage. See “MAP Sensor” (page 500).
EBP sensor bias
Check sensor signal voltage. See “EBP Sens or” (p ag e 3 59).
ICP sensor bias Check sensor signal voltage. See “ICP Sensor” (page 457).
Powercylinderintegrity
Do “Performance Diagnostics” (page 205).
ICP system integrity Do “Performance Diagnostics” (page 205).
Injector operation / part number Check previous repairs. Do “Performance Diagnostics” (page
205).
EGR valve stuck open Do “Performance Diagnostics” (page 205)
VGT actuator or vanes sticking Do “Performance Diagnostics” (page 205)
VGT control circuit open , short to
ground, or short to B+
Do VGT Pin-Point Diagnostics. See “VGT Actuator” (page 524).
Open Exhaust (no muffler)
Inspect exhaust sys tem.
Exhaust restriction or leak (muffler or
catalytic converter)
Inspect exhaust and do “Performance Diagnostics” (page 205).
VGT power or ground circuits Do VGT Pin-Point Diagnostics. See “VGT Actuator” (page 524).
EGES-270-1
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
Follow all warnings, cautions, and notes.
© August 2008 Navistar, Inc.
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