Egr Leak (Boost Mode); Egr Leak (Boost Jake) - Detroit Diesel Series 60 EGR Technician Manual

Failure Mode: SID 146, FMI 2 — EGR Leak (Boost Mode)
Indicates: No EGR flow requested by DDEC and EGR flow detected.
SID 146, FMI 2 will be set by the ECM if, the signal from the Delta P sensor and EGR
temperature sensor indicate EGR flow is above a maximum allowable flow when the ECM is in
"Boost Mode" for a period greater than 50 seconds.
Response: The CEL will illuminate and a fault message will be generated.
Possible Causes:
Defective Delta P sensor
EGR valve mechanical failure (open)
Plugged Delta P lines
Failure Mode: SID 146, FMI 12 — EGR Leak (Boost Jake)
Indicates: No EGR flow requested by DDEC and EGR flow is detected while braking.
SID 146, FMI 12 will be set by the ECM if, the signal from the Delta P sensor and EGR
temperature sensor indicate EGR flow is above a maximum allowable flow when the ECM is in
"Jake Mode" for a period greater than 50 seconds.
Response: The CEL will illuminate and a fault message will be generated.
Possible Causes:
Defective Delta P sensor
EGR valve mechanical failure (open)
Plugged Delta P lines
All information subject to change without notice. (Rev. June 2005)
7SE60 0506 Copyright © 2005 DETROIT DIESEL CORPORATION
SERIES 60 EGR TECHNICIAN'S MANUAL
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