Spn 411/Fmi 0; Egr Components Check - Detroit Diesel Series 60 DDEC VI Troubleshooting Manual

15.1 SPN 411/FMI 0

This diagnosis is typically EGR differential pressure failed high.
15.1.1

EGR Components Check

Check as follows:
1. Inspect to see of the coolant level is low.
[a] If the coolant level is low, inspect the EGR cooler.
[b] If the coolant level is OK, go to step 2.
2. Check for multiple diagnostic trouble codes.
[a] If codes other than 411/0 are present, service them first.
[b] If only 411/0 is present, go to step 3.
3. Connect DDDL 7.0 and monitor the coolant temperature, EGR Delta P, EGR PW, EGR
valve position and EGR temperature.
4. Start the engine and increase the RPM to 1200.
5. Activate EGR PW to 60%.
NOTE:
Do not exceed three minutes.
6. Is the EGR Delta P count greater than 170 and the EGR temperature greater than 90°
above coolant temperature?
[a] If yes, repeat steps 1 through 6 in this section. If the same results occur, contact the
Detroit Diesel Customer Support Center (313–592–5800).
[b] If no, go to step 7.
7. Turn the engine OFF.
8. Inspect the EGR delivery pipes for damage and proper assembly.
[a] If damaged, repair as necessary. Refer to section 15.1.1.1.
[b] If OK, go to step 9.
9. Disconnect the EGR Delta P Sensor and inspect the EGR venturi tubes for blockage.
[a] If the tubes are blocked, clean them. Refer to section 15.1.1.1.
[b] If the tubes are not blocked, replace the EGR Delta P Sensor. Refer to section
15.1.1.1.
All information subject to change without notice.
PRELIMINARY 6SE567 0512 Copyright © 2005 DETROIT DIESEL CORPORATION
DDEC VI SERIES 60 TROUBLESHOOTING GUIDE
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