Failure Mode: Sid 146, Fmi 2 — Egr Leak (Boost Mode); Failure Mode: Sid 146, Fmi 12 — Egr Leak (Boost Jake) - Detroit Diesel 60 EGR Series Technician Manual

CODES
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:
EGR valve mechanical failure (open)
Defective Delta P sensor
Plugged Delta P lines
Failure Mode: SID 146, FMI 12 — EGR Leak (Boost Jake)
Indicates: No EGR flow requested by DDEC andEGR 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:
EGR valve mechanical failure (open)
Defective Delta P sensor
Plugged Delta P lines
4-8
All information subject to change without notice. (Rev. April 2004)
7SE60 0404 Copyright © 2004 DETROIT DIESEL CORPORATION