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SUBJECT
DATE
SPN 3563 FMI 21 - GHG14
January 2013
Additions, Revisions, or Updates
Publication Number / Title
DDC-SVC-MAN-0084
Platform
Section Title
Change
GHG14 DD
Platform
SPN 3563 FMI 21 GHG14
New MCM2.1 diagnostics.
All information subject to change without notice.
1 01-13 Copyright © 2013 DETROIT DIESEL CORPORATION
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2 SPN 3563/FMI 21 - GHG14
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SPN 3563/FMI 21 - GHG14
This diagnostic is typically Ambient and Intake Manifold Pressure Difference (High Box).
Table 1.
SPN 3563/FMI 21
Description
Ambient and Intake Manifold Pressure Difference (High Box)
Monitored Parameter
Intake Manifold Pressure and Barometric Pressure
Typical Enabling Conditions
Engine Parameter
Min
Max
Engine Speed (rpm)
1350
1800
Engine Torque (Nm)
1400
3000
Intake Air Throttle Position (%)
5
Engine Coolant Outlet Temperature (°C)
65
Monitor Sequence
None
Execution Frequency
Continuous when enabling conditions met
Typical Duration
40 s
Dash Lamps
SEL, CEL, MIL
Engine Reaction
25% Derate + Engine Shutdown
Verification
Once engine is at standard operating temperature, drive at highway speed with loaded
trailer between 1350-1800 rpm continuously for five minutes.
1. Turn the ignition ON (key ON, engine OFF).
2. Compare intake manifold air pressure to barometric pressure.
3. Is the intake manifold air pressure within 0.5 psi of barometric pressure?
a. Yes; Go to step 4.
b. No; replace the intake manifold pressure/temperature sensor. Refer to section "Removal of the Intake Pressure/
Temperature Sensor".
WARNING: PERSONAL INJURY
Diesel engine exhaust and some of its constituents are known to the State of California to cause
cancer, birth defects, and other reproductive harm.
• Always start and operate an engine in a well ventilated area.
• If operating an engine in an enclosed area, vent the exhaust to the outside.
• Do not modify or tamper with the exhaust system or emission control system.
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.
4. Start the engine.
5. At idle, compare intake manifold air pressure to barometric pressure.
6. Is the intake manifold air pressure within 0.5 psi of barometric pressure?
4
All information subject to change without notice.
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a. Yes; Go to step 7.
b. No; replace the intake manifold pressure/temperature sensor. Refer to section "Installation of the Intake Pressure/
Temperature Sensor".
7. Perform a Charge Air Cooler (CAC) inspection and leak test the system. Refer to Original Equipment Manufacturer
(OEM) literature for procedure.
a. If the CAC inspection and/or the leak test fails, repair as necessary. Verify repairs.
b. If the CAC inspection passes, obtain the DDDL log file of the failure and contact the Customer Support Center at
(800) 445-1980 for further diagnostic assistance.
All information subject to change without notice.
1 01-13 Copyright © 2013 DETROIT DIESEL CORPORATION
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