02 07-16

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02 07-16

SUBJECT

DATE

SPN 1322 (MCM) (GHG17)

February 2016

Additions, Revisions, or Updates
Publication Number / Title

DDC-SVC-MAN-0191

Platform

GHG17 DD
Platform

Section Title
SPN 1322/FMI 10 GHG17
SPN 1322/FMI 11 GHG17

All information subject to change without notice.

02 07-16

Copyright © 2016 DETROIT DIESEL CORPORATION

Change

Updates to existing GHG17 diagnostic procedures.

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2 SPN 1322/FMI 10 – GHG17

2

SPN 1322/FMI 10 – GHG17

Simultaneous Misfire on Multiple Cylinders Detected
Table 1.
SPN 1322/FMI 10
Description

This Fault Code Sets Once the Motor Control Module (MCM) Detects
a Misfire on Multiple Cylinders Within One Rotation of Crankshaft
With all Conditions Met

Monitored Parameter

Injection Quantity

Typical Enabling Conditions

•
•
•
•
•

Monitor Sequence

Always When Enabling Conditions Are Met

Execution Frequency

Always

Typical Duration

1000 Revolutions

Dash Lamps

MIL

Engine Reaction

None

Verification

Ensure the Ignition Has Been Off for a Minimum of Five Minutes
Prior to the Last Ignition On. Meet All Enabling Conditions. 15-Minute
Road Test

Engine Speed Between 500 and 1600 rpm
Engine Torque Load Between 25 and 75%
All Cylinders Are Active, No Fault Reactions
Engine Speed/Torque Is Steady
Coolant temperature is Greater Than 62°C (144°F) and Less Than
114°C (237°F)
• Fuel temperature is Greater Than 0°C (32°F) and Less Than
150°C (302°F)

The entry conditions for this code are:
• Engine speed is above low idle
• All cylinders are active, no fault reactions
• Engine speed/torque is steady
This fault can occur due to the conditions listed below:
•
•
•
•
•
•
•

4

Cylinder kit failure
Valve train failure
Lash adjustments
Fuel injector
High pressure fuel line (rail to fuel injector)
Debris entering fuel injector (intermittent faults)
Fuel quality

All information subject to change without notice.

Copyright © 2016 DETROIT DIESEL CORPORATION

02 07-16

02 07-16

Table 2.
Required Service Tools

W470589009800

DD13/15 Cam Gear Cover

Check as follows:
1. Using DiagnosticLink ® Standard, perform the Relative Cylinder Compression Test listed under service routines. Refer
to section "Relative Cylinder Compression Test". Is low compression found and all cylinders within 10%?
a. Yes; the issue is related to a mechanical failure/issue for that cylinder. Repair as necessary.
b. No; Go to step 2.
WARNING: ENGINE EXHAUST
To avoid injury from inhaling engine exhaust, always operate the engine in a well-ventilated area.
Engine exhaust is toxic.

WARNING: PERSONAL INJURY
To avoid injury before starting and running the engine, ensure the vehicle is parked on a level
surface, parking brake is set, and the wheels are blocked.
2. Start and bring the engine up to operating temperature of 60°C (140°F).
NOTE: For Idle Speed Balance (ISB) values to update, the engine speed must be at idle.
3. Using DiagnosticLink Standard, read parameter ISB values under the instrumentation section. Is the value for any
cylinder at its maximum limit of +100?
a. Yes; Go to step 4.
b. No; fault may be intermittent. Obtain information from customer on driving habits, recent repairs, number of
occurrences when fault code set, or situations when the code occurred. Try to retest engine within these
parameters.
4. Inspect high pressure fuel line from rail to fuel injector for damage. Is damage found?
a. Yes; replace the high pressure fuel injector line if necessary. Go to step 5.
b. No; replace the fuel injector for the cylinder identified. Go to step 5.
5. Verify repairs. Is misfire concern resolved?
a. Yes; testing is completed. Clear faults and release vehicle.
b. No; perform the Aerated Fuel Test. Refer to section "Aerated Fuel Test – Two-Filter Fuel System".

All information subject to change without notice.

02 07-16

Copyright © 2016 DETROIT DIESEL CORPORATION

5

3 SPN 1322/FMI 11 – GHG17

3

SPN 1322/FMI 11 – GHG17

Misfire on Alternating Cylinders Detected
Table 3.
SPN 1322/FMI 11
Description

This Fault Will Occur Once The MCM Sees The Injection Duration
Compensates More Than A Set Threshold Within Multiple Rotations
Of Crankshaft With All Conditions Met

Monitored Parameter

Injection Quantity

Typical Enabling Conditions

•
•
•
•
•

Monitor Sequence

Always When Enabling Conditions Are Met

Execution Frequency

Always

Typical Duration

1000 Revolutions

Dash Lamps

MIL

Engine Reaction

None

Verification

Ensure the Ignition Has Been Off for a Minimum of Five Minutes
Prior to the Last Ignition On. Meet All Enabling Conditions. 15-Minute
Road Test

Engine Speed Between 500 and 1600 rpm
Engine Torque Load Between 25 and 75%
All Cylinders Are Active, No Fault Reactions
Engine Speed/Torque is Steady
Coolant Temperature is Greater Than 62°C (144°F) and Less
Than 114°C (237°F)
• Fuel Temperature is Greater Than 0°C (32°F) and Less Than
150°C (302°F)

The entry conditions for this code are:
• Engine speed is above low idle
• All cylinders are active, no fault reactions
• Engine speed/torque is steady
This fault can occur due to the conditions listed below:
•
•
•
•
•
•
•

6

Cylinder kit failure
Valve train failure
Lash adjustments
Fuel injector
High pressure fuel line (rail to fuel injector)
Debris entering fuel injector (intermittent faults)
Fuel quality

All information subject to change without notice.

Copyright © 2016 DETROIT DIESEL CORPORATION

02 07-16

02 07-16

Table 4.
Required Service Tools

W470589009800

DD13/15 Cam Gear Cover

Check as follows:
1. Using DiagnosticLink ® Standard, perform the Relative Cylinder Compression Test listed under service routines. Refer
to section "Relative Cylinder Compression Test". Is low compression found and all cylinders within 10%?
a. Yes; the issue is related to a mechanical failure/issue for that cylinder. Repair as necessary.
b. No; Go to step 2.
WARNING: ENGINE EXHAUST
To avoid injury from inhaling engine exhaust, always operate the engine in a well-ventilated area.
Engine exhaust is toxic.

WARNING: PERSONAL INJURY
To avoid injury before starting and running the engine, ensure the vehicle is parked on a level
surface, parking brake is set, and the wheels are blocked.
2. Start and bring the engine up to operating temperature of 60°C (140°F).
NOTE: For Idle Speed Balance (ISB) values to update, the engine speed must be at idle.
3. Using DiagnosticLink Standard, read parameter ISB values under the instrumentation section. Is the value for any
cylinder at its maximum limit of +100?
a. Yes; Go to step 4.
b. No; fault may be intermittent. Obtain information from customer on driving habits, recent repairs, number of
occurrences when fault code set, or situations when the code occurred. Try to retest engine within these
parameters.
4. Inspect high pressure fuel line from rail to fuel injector for damage. Is damage found?
a. Yes; replace the high pressure fuel injector line if necessary. Go to step 5.
b. No; replace the fuel injector for the cylinder identified. Go to step 5.
5. Verify repairs. Is misfire concern resolved?
a. Yes; testing is completed. Clear faults and release vehicle.
b. No; perform the Aerated Fuel Test. Refer to section "Aerated Fuel Test – Two-Filter Fuel System".

All information subject to change without notice.

02 07-16

Copyright © 2016 DETROIT DIESEL CORPORATION

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