08 DDEC VI-12 - ddcsn

NUMBER: 08 DDEC VI–12 S.M. REF.: Table 1 ENGINE: EPA07 MBE 4000 DATE: March 2008
SUBJECT: NEW FMI 13 ADDITIONS
PUBLICATION: DDC-SVC-MAN-0010 (6SE568)
Six SPN troubleshooting procedures have been added as listed in Table 1.
SPN/FMI Added
Title
SPN 1323/FMI 13 refer to section 84
Cylinder #1 Misfire Detected
SPN 1324/FMI 13 refer to section 85
Cylinder #2 Misfire Detected
SPN 1325/FMI 13 refer to section 86
Cylinder #3 Misfire Detected
SPN 1326/FMI 13 refer to section 87
Cylinder #4 Misfire Detected
SPN 1327/FMI 13 refer to section 88
Cylinder #5 Misfire Detected
SPN 1328/FMI 13 refer to section 89
Cylinder #6 Misfire Detected
Table 1 Manual Additions

SPN 1323/FMI 13
This diagnosis is typically a misfire has been detected in cylinder #1.
SPN 1323/FMI 13 indicates a misfire event on cylinder #1, the entry conditions for this fault are:
□ Engine speed: 1350 - 2200 rpm
□ Engine load: Steady
Cylinder misfire can occur due to any of the conditions below:
□ Injector-wornorfaulty
□ Fuel leak at transfer tube or high pressure fuel line
□ Poor cylinder compression
□ Valve lash maladjustment
□ Cylinder kit failure
□ Valve train failure
Check as follows:
1. Start and bring the engine up to operating temperature.
2. Using DDDL 7.x perform the “Compression Test” service routine:
[a] If cylinder #1 shows low compression, the issue is related to a possible mechanical failure
such as valve lash, maladjustment, valve train damage, etc. Repair the cylinder concern.
[b] If all cylinders are within 10% of each other, go to step 3.
NOTE:
Engine must be at idle while using this routine.
3. Using DDDL 7.x access the “ISB” service routine.
[a] If the “ISB” service routine results for cylinder #1 are +/- 100%, go to step 4.
[b] If the “ISB” service routine results are not equal to +/- 100%, the fault may be intermittent.
Continue to run the test for 3 minutes. If the above values are seen, go to step 4.
[c] If ISC values are not +/- 100% after 3 minutes, obtain added information from the
customer on the vehicle's operating conditions. Fault code “extended data” may be used in
order to determine the engines operating range when the fault actually occurred. Obtain a
DDDL log file of the condition and contact the Detroit Diesel Customer Support Center
at 313–592–5800 for further instruction.

NOTICE:
Never re-use a high pressure fuel line or transfer tube.
4. Visually inspect the high pressure fuel line and transfer tube on cylinder #1 for any leakage
or damage.
[a] If any leakage or damage is found, replace the high pressure fuel line, and transfer tube.
Refer to section "Removal of High Pressure Fuel Line and Transfer Tube" in the EPA07
MBE 4000 Service Manual (DDC-SVC-MAN-0023 (6SE412).
[b]
If no leakage or damage is found, replace the #1 fuel injector, high pressure fuel line, and
transfer tube. Refer to section Removal of Fuel Injector in the EPA07 MBE 4000 Service
Manual (DDC-SVC-MAN-0023 (6SE412).

SPN 1324/FMI 13
This diagnosis is typically a misfire has been detected in cylinder #2.
SPN 1324/FMI 13 indicates a misfire event on cylinder #2, conditions for this fault are:
□ Engine speed: 1350 - 2200 rpm
Cylinder misfire can occur due to any of the conditions below:
□ Injector-wornorfaulty
□ Fuel leak at transfer tube or high pressure fuel line
□ Poor cylinder compression
□ Valve lash maladjustment
□ Cylinder kit failure
□ Valve train failure
Check as follows:
1. Start and bring the engine up to operating temperature.
2. Using DDDL 7.x perform the “Compression Test” service routine:
[a] If cylinder #2 shows low compression, the issue is related to a possible mechanical failure
such as valve lash, maladjustment, valve train damage, etc. Repair the cylinder concern.
[b] If all cylinders are within 10% of each other, go to step 3.
NOTE:
Engine must be at idle while using this routine.
3. Using DDDL 7.x access the “ISB” service routine.
[a] If the “ISB” service routine results for cylinder #2 are +/- 100%, go to step 4.
[b] If the “ISB” service routine results are not equal to +/- 100%, the fault may be intermittent.
Continue to run the test for 3 minutes. If the above values are seen, go to step 4.
[c] If ISC values are not +/- 100% after 3 minutes, obtain added information from the
customer on the vehicle's operating conditions. Fault code “extended data” may be used in
order to determine the engines operating range when the fault actually occurred. Obtain a
DDDL log file of the condition and contact the Detroit Diesel Customer Support Center
at 313–592–5800 for further instruction.

NOTICE:
Never re-use a high pressure fuel line or transfer tube.
4. Visually inspect the high pressure fuel line and transfer tube on cylinder #2 for any leakage
or damage.
[a] If any leakage or damage is found, replace the high pressure fuel line, and transfer tube.
RefertosectionRemovalofHighPressureFuel Line and Transfer Tube in the EPA07
MBE 4000 Service Manual (DDC-SVC-MAN-0023 (6SE412).
[b]
If no leakage or damage is found, replace the #2 fuel injector, high pressure fuel line, and
transfer tube. Refer to section Removal of Fuel Injector in the EPA07 MBE 4000 Service
Manual (DDC-SVC-MAN-0023 (6SE412).

SPN 1325/FMI 13
This diagnosis is typically a misfire has been detected in cylinder #3.
SPN 1325/FMI 13 indicates a misfire event on cylinder #3, conditions for this fault are:
□ Engine speed: 1350 - 2200 rpm
Cylinder misfire can occur due to any of the conditions below:
□ Injector-wornorfaulty
□ Fuel leak at transfer tube or high pressure fuel line
□ Poor cylinder compression
□ Valve lash maladjustment
□ Cylinder kit failure
□ Valve train failure
Check as follows:
1. Start and bring the engine up to operating temperature.
2. Using DDDL 7.x perform the “Compression Test” service routine:
[a] If cylinder #3 shows low compression, the issue is related to a possible mechanical failure
such as valve lash, maladjustment, valve train damage, etc. Repair the cylinder concern.
[b] If all cylinders are within 10% of each other, go to step 3.
NOTE:
Engine must be at idle while using this routine.
3. Using DDDL 7.x access the “ISB” service routine.
[a] If the “ISB” service routine results for cylinder #3 are +/- 100%, go to step 4.
[b] If the “ISB” service routine results are not equal to +/- 100%, the fault may be intermittent.
Continue to run the test for 3 minutes. If the above values are seen, go to step 4.
[c] If ISC values are not +/- 100% after 3 minutes, obtain added information from the
customer on the vehicle's operating conditions. Fault code “extended data” may be used in
order to determine the engines operating range when the fault actually occurred. Obtain a
DDDL log file of the condition and contact the Detroit Diesel Customer Support Center
at 313–592–5800 for further instruction.

NOTICE:
Never re-use a high pressure fuel line or transfer tube.
4. Visually inspect the high pressure fuel line and transfer tube on cylinder #3 for any leakage
or damage.
[a] If any leakage or damage is found, replace the high pressure fuel line, and transfer tube.
RefertosectionRemovalofHighPressureFuel Line and Transfer Tube in the EPA07
MBE 4000 Service Manual (DDC-SVC-MAN-0023 (6SE412).
[b]
If no leakage or damage is found, replace the #3 fuel injector, high pressure fuel line, and
transfer tube. Refer to section Removal of Fuel Injector in the EPA07 MBE 4000 Service
Manual (DDC-SVC-MAN-0023 (6SE412).

SPN 1326/FMI 13
This diagnosis is typically a misfire has been detected in cylinder #4.
SPN 1326/FMI 13 indicates a misfire event on cylinder #4, conditions for this fault are:
□ Engine speed: 1350 - 2200 rpm
Cylinder misfire can occur due to any of the conditions below:
□ Injector-wornorfaulty
□ Fuel leak at transfer tube or high pressure fuel line
□ Poor cylinder compression
□ Valve lash maladjustment
□ Cylinder kit failure
□ Valve train failure
Check as follows:
1. Start and bring the engine up to operating temperature.
2. Using DDDL 7.x perform the “Compression Test” service routine:
[a] If cylinder #4 shows low compression, the issue is related to a possible mechanical failure
such as valve lash, maladjustment, valve train damage, etc. Repair the cylinder concern.
[b] If all cylinders are within 10% of each other, go to step 3.
NOTE:
Engine must be at idle while using this routine.
3. Using DDDL 7.x access the “ISB” service routine.
[a] If the “ISB” service routine results for cylinder #4 are +/- 100%, go to step 4.
[b] If the “ISB” service routine results are not equal to +/- 100%, the fault may be intermittent.
Continue to run the test for 3 minutes. If the above values are seen, go to step 4.
[c] If ISC values are not +/- 100% after 3 minutes, obtain added information from the
customer on the vehicle's operating conditions. Fault code “extended data” may be used in
order to determine the engines operating range when the fault actually occurred. Obtain a
DDDL log file of the condition and contact the Detroit Diesel Customer Support Center
at 313–592–5800 for further instruction.

NOTICE:
Never re-use a high pressure fuel line or transfer tube.
4. Visually inspect the high pressure fuel line and transfer tube on cylinder #4 for any leakage
or damage.
[a] If any leakage or damage is found, replace the high pressure fuel line, and transfer tube.
RefertosectionRemovalofHighPressureFuel Line and Transfer Tube in the EPA07
MBE 4000 Service Manual (DDC-SVC-MAN-0023 (6SE412).
[b]
If no leakage or damage is found, replace the #4 fuel injector, high pressure fuel line, and
transfer tube. Refer to section Removal of Fuel Injector in the EPA07 MBE 4000 Service
Manual (DDC-SVC-MAN-0023 (6SE412).

SPN 1327/FMI 13
This diagnosis is typically a misfire has been detected in cylinder #5.
SPN 1327/FMI 13 indicates a misfire event on cylinder #5, conditions for this fault are:
□ Engine speed: 1350 - 2200 rpm
Cylinder misfire can occur due to any of the conditions below:
□ Injector-wornorfaulty
□ Fuel leak at transfer tube or high pressure fuel line
□ Poor cylinder compression
□ Valve lash maladjustment
□ Cylinder kit failure
□ Valve train failure
Check as follows:
1. Start and bring the engine up to operating temperature.
2. Using DDDL 7.x perform the “Compression Test” service routine:
[a] If cylinder #5 shows low compression, the issue is related to a possible mechanical failure
such as valve lash, maladjustment, valve train damage, etc. Repair the cylinder concern.
[b] If all cylinders are within 10% of each other, go to step 3.
NOTE:
Engine must be at idle while using this routine.
3. Using DDDL 7.x access the “ISB” service routine.
[a] If the “ISB” service routine results for cylinder #5 are +/- 100%, go to step 4.
[b] If the “ISB” service routine results are not equal to +/- 100%, the fault may be intermittent.
Continue to run the test for 3 minutes. If the above values are seen, go to step 4.
[c] If ISC values are not +/- 100% after 3 minutes, obtain added information from the
customer on the vehicle's operating conditions. Fault code “extended data” may be used in
order to determine the engines operating range when the fault actually occurred. Obtain a
DDDL log file of the condition and contact the Detroit Diesel Customer Support Center
at 313–592–5800 for further instruction.

NOTICE:
Never re-use a high pressure fuel line or transfer tube.
4. Visually inspect the high pressure fuel line and transfer tube on cylinder #5 for any leakage
or damage.
[a] If any leakage or damage is found, replace the high pressure fuel line, and transfer tube.
RefertosectionRemovalofHighPressureFuel Line and Transfer Tube in the EPA07
MBE 4000 Service Manual (DDC-SVC-MAN-0023 (6SE412).
[b]
If no leakage or damage is found, replace the #5 fuel injector, high pressure fuel line, and
transfer tube. Refer to section Removal of Fuel Injector in the EPA07 MBE 4000 Service
Manual (DDC-SVC-MAN-0023 (6SE412).

SPN 1328/FMI 13
This diagnosis is typically a misfire has been detected in cylinder #6.
SPN 1328/FMI 13 indicates a misfire event on cylinder #6, conditions for this fault are:
□ Engine speed: 1350 - 2200 rpm
Cylinder misfire can occur due to any of the conditions below:
□ Injector-wornorfaulty
□ Fuel leak at transfer tube or high pressure fuel line
□ Poor cylinder compression
□ Valve lash maladjustment
□ Cylinder kit failure
□ Valve train failure
Check as follows:
1. Start and bring the engine up to operating temperature.
2. Using DDDL 7.x perform the “Compression Test” service routine:
[a] If cylinder #6 shows low compression, the issue is related to a possible mechanical failure
such as valve lash, maladjustment, valve train damage, etc. Repair the cylinder concern.
[b] If all cylinders are within 10% of each other, go to step 3.
NOTE:
Engine must be at idle while using this routine.
3. Using DDDL 7.x access the “ISB” service routine.
[a] If the “ISB” service routine results for cylinder #6 are +/- 100%, go to step 4.
[b] If the “ISB” service routine results are not equal to +/- 100%, the fault may be intermittent.
Continue to run the test for 3 minutes. If the above values are seen, go to step 4.
[c] If ISC values are not +/- 100% after 3 minutes, obtain added information from the
customer on the vehicle's operating conditions. Fault code “extended data” may be used in
order to determine the engines operating range when the fault actually occurred. Obtain a
DDDL log file of the condition and contact the Detroit Diesel Customer Support Center
at 313–592–5800 for further instruction.

NOTICE:
Never re-use a high pressure fuel line or transfer tube.
4. Visually inspect the high pressure fuel line and transfer tube on cylinder #6 for any leakage
or damage.
[a] If any leakage or damage is found, replace the high pressure fuel line, and transfer tube.
RefertosectionRemovalofHighPressureFuel Line and Transfer Tube in the EPA07
MBE 4000 Service Manual (DDC-SVC-MAN-0023 (6SE412).
[b]
If no leakage or damage is found, replace the #6 fuel injector, high pressure fuel line, and
transfer tube. Refer to section Removal of Fuel Injector in the EPA07 MBE 4000 Service
Manual (DDC-SVC-MAN-0023 (6SE412).

ADDITIONAL SERVICE INFORMATION
Additional service information is available in one of the DDEC VI troubleshooting guides.
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