NHTSA ID Number: 10130975
Manufacturer Communication Number: IK1201213
TSB/Document Date: 2018-04-02
Summary
DTC 3055 Fuel System Diagnostics
IK1201213 MaxxForce 7 DTC 3055 Fuel System Diagnostics
Countries:
Page 1 of 9
CANADA, UNITED STATES, MEXICO, PUERTO RICO Document ID: IK1201213
Availability:
Major System:
ENGINES
Revision:
1
Created:
9/25/2014
Current Language: English
Last Modified: 10/31/2014
Other Languages: NONE
Author:
Viewed:
Aaron Mimbs
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Title : MaxxForce 7 DTC 3055 Fuel System Diagnostics
Applies To : 2010 - 2013 MaxxForce 7
CHANGE LOG
2014/10/27 Corrected Step 6 Decision Path
2014/10/21 Initial Article Release
DESCRIPTION
This document will guide the user through step based diagnostics for the High Pressure Fuel System concerning the DTC 3055.
SYMPTOMS
Diagnostic Trouble Codes & Dashboard Indicator Lights:
DTC/Light
SPN 3055 FMI 0 (Pending/Active)
Description
FRP Exceeded Maximum
Potential Issues
FPCV/FVCV Not Operating Properly, Biased FRP Sensor
Fuel Line Leak, Low FDP, Transfer case unable to draw
fuel from one tank when the other is near empty, Previous
adaptive values inhibiting proper FRP control
Biased FRP Sensor, Fuel Line Leak, HPFP Failure,
FPCV/FVCV Sticking or Electrical Fault
SPN 3055 FMI 1 (Pending/Active)
Low Fuel Pressure at Start
SPN 3055 FMI 2 (Pending/Active)
FPCV/FVCV Adaptation in-range Fault
SPN 3055 FMI 13 (Pending/Active)
Fuel Pressure Offset Check
SPN 3055 FMI 15 (Pending/Active)
FRP below minimum with maximum command
SPN 3055 FMI 16 (Pending/Active)
FRP below minimum with maximum command
Same as above (FMI 15)
SPN 3055 FMI 17 (Pending/Active)
FRP above maximum with minimum command
HPFP Harness, Biased High FRP Sensor,
Sticking/Leaking FPCV, High Fuel Return Restriction
SPN 3055 FMI 18 (Pending/Active)
FRP above maximum with minimum command
Same as above (FMI 17)
SPN 3055 FMI 31 (Pending/Active)
FPCV/FVCV Adaptation in-range Fault
Biased FRP Sensor, Fuel Line Leak, HPFP Failure,
FPCV/FVCV Sticking or Electrical Fault
FRP unable to drop at key off, choked fuel filters, Ignition
switch cycled too fast, Pump does not shut down at key
off, Resistance in low pressure fuel line
HPFP Harness, Biased Low FRP Sensor, UVC Harness
to FRP Sensor Connector, Low FDP, HPFP Fuel Supply
Restriction, Fuel Supply Aeration, Sticking FPCV,
High Pressure Fuel Leak, Over Fueling Injector(s)
Customer Observations or Concerns:
Malfunction Indicator Light
- Power Loss
- Inoperable Engine
SPECIAL TOOLS / SOFTWARE
Tool Description
ServiceMaxx
Interface cable
Cylinder Performance Analyzer Complete Kit
Cylinder Performance Analyzer Update Kit
Tool Number Comments
Instructions
Nexiq or Navcom
OE-11178
See Below
12-999-01-E1
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11/3/2014
IK1201213 MaxxForce 7 DTC 3055 Fuel System Diagnostics
16-Pin Engine to Chassis Breakout Harness
Banana Clip Extension
180-Pin Breakout Box
2010 MaxxForce 7 Harness Kit
ZTSE4762
Page 2 of 9
For FPCV/FVCV 12V Supply
000095608
000146100 Breakout Box Harness
Graduated cylinder (0 700 mL)
Fuel Pressure Gauge (30psi Limit)
Fuel Pressure Test Kit
ZTSE4681
ZTSE4657
Tools Resource Center
Image
Description
Tool Number
Qty
CPA Harness Extension
12-999-01-05
3
CPA Banana Jack Breakout
12-999-01-06
3
NOTE:
Download instructions for the new CPA software can be found in IK2700062
For CPA "Recorder" program activation please see Activate CPA Recorder
SERVICE PARTS INFORMATION
Kit Description
HARNESS, ASSY HP PUMP
HARNESS, ASSY UVC R
SENSOR ASSY, FUEL RAIL PRESSURE
ASSY KIT HP PUMP & HARNESS
KIT HP FUEL PUMP
KIT INJECTOR
FUEL FILTER MODULE ASSEMBLY
ZIPTIES
Part Number
7080246C91
1899577C92
1873400C92
7080839C93
7080839C92
1899239C92
1886166C95
Obtain Locally
Quantity Required
1 - As Needed
1 - As Needed
1 - As Needed
1 - As Needed
1 - As Needed
1-8 - As Needed
1 - As Needed
As Needed
Notes
Parts Catalog
DIAGNOSTIC STEPS
NOTE
Before beginning step based diagnostics, review warranty history and check with the customer for recent repairs relating to the fuel system. Do not replace
duplicate components. Perform step based diagnostics and if needed, skip directions to replace the components that were recently replaced.
Step Action
Engine Calibration.
1
Decision
Yes. Step 2
Is the ECM Calibration up-to-date?
No. Update calibration then go to
Step 2
Step Action
Decision
2
Perform visual inspections per the Diagnostic Manual and Performance Diagnostic Sheet.
Yes. Correct issues, Step 3
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IK1201213 MaxxForce 7 DTC 3055 Fuel System Diagnostics
Page 3 of 9
Were any issues found?
No. Step 3
Step Action
Diagnostic trouble codes.
3
Decision
Yes. See Diagnostic Manual
EGED 0000001681. Step 4
Are there any other pending or active DTCs (aside from SPN 3055 FMI XX)?
No. Step 5
Step Action
Diagnostic trouble codes.
Were the DTCs corrected using the Diagnostic Manual?
4
Step Action
Reset the Fuel Pressure Adaptives.
5
Can the code(s) be recreated (road test if required)?
Step Action
At KOEO (0 psi Fuel Rail Pressure, FRP) during the continuous monitor test, check the FRP
sensor voltage.
Decision
Yes. Step 5
No. If unrelated to the fuel system
continue with Step 5 and address
codes at a later time. If relevant to
the fuel system contact a
supervisor and ensure all the
proper decisions were made. Open
a case file with Navistar
's
Technical Support group with all
relevant information and
recordings for further assistance.
Decision
Yes. Step 6
No. Complete any other work
required and then release unit to
the customer, if this is a repeat
offender please continue with Step
6.
Decision
Yes. Step 7
Sensor Voltage Specification: FRP Voltage = (VREF1) * 0.1
FRP Sensor Voltage Specification: 0.475V - 0.525V (Typically 0.48-0.5V)
6
Is the FRP sensor voltage within specification?
NOTE: The FRP Sensors Reference Voltage (VREF1) is located at pin E-26 on the ECM. If
desired manually check VREF1 and use for comparison to the specification. VREF1 Specification:
VREF1 = 4.75V 5.25V
No. Complete any other work
required and then release unit to
the customer, if this is a repeat
offender please continue with Step
7.
(Sensor/Voltage Discrepancy Example: VREF1 measures 4.8V and KOEO FRP voltage reads
0.53V)
Step Action
Reassemble and reset the Fuel Pressure Adaptives.
7
Decision
Yes. Step 8
Can the code(s) be recreated?
No. Release unit to the customer
Step Action
Decision
8
Visually and physically inspect the low pressure fuel system lines, including fuel tank. Feel
for kinks or disruptions in the tube geometry. Also inspect the fuel filter module for dirty
filters and/or debris.
Yes. Repair/clean as needed
Reassemble and Step 9.
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IK1201213 MaxxForce 7 DTC 3055 Fuel System Diagnostics
Were any issues noted?
Step Action
Reset the Fuel Pressure Adaptives.
9
- Restores fuel economy
- Stabilizes ethanol
- Maximizes horsepower
- Improves responsiveness
- For use in both gasoline and diesel engines
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TSB/Document ID: IK1201213
Replacement Service Bulletin Number:
MFR Communication Date: 2014-10-31
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: FUEL SYSTEM, GASOLINE
MFR Component System:
MFR Component Subsystem:
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