IK1200825 Service Bulletin/Repair Instructions

IK1200825 - Diagnosing SPN 3055 FMI 17 - FRP Above Maximum with Minimum Com... Page 1 of 2
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CANADA, UNITED STATES Document ID: IK1200825
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Major System:
ENGINES
Created:
10/3/2012
Current Language: English
Last Modified: 11/26/2012
Other Languages: NONE
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Steve Kueller
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Title: Diagnosing SPN 3055 FMI 17 - FRP Above Maximum with Minimum Command

Applies To: MaxxForce 11 /1 3 Engine

DESCRIPTION

This article provides the procedure for: Diagnosing SPN 3055 FMI 17 - FRP Above Maximum with Minimum Command

TRIAGE

• Check calibration status by checking vehicle calibration scorecard and update if necessary.

1. Record active or inactive codes before a calibration update is performed.

• Check vehicle history.

• Check for any open campaigns.

• Customer Questionnaire:

1. Can you explain when the vehicle experiences the problem? For instance, is it at idle, under load or is there anything unique about the circumstances?

2. Did any lights such as the "check engine" light show up on the dash? Is the code active?

3. Did the problem just start or has it been getting worse over time?

4. Has any work been done recently to the engine?

5. Has the vehicle been in for the same problem before?

6. If we rode with you, how would you duplicate the problem?

POSSIBLE CAUSES

• Restricted fuel return line

• Defective FRP sensor

• Defective fuel pump

DIAGNOSTIC PROCEDURES

1. Check signal return voltage of the FRP (fuel rail pressure) sensor by performing the following procedure:

A. Start Engine.

B. Turn the key OFF and leave the key in the OFF position for 1 minute.

• This action permits the ECM to perform its housekeeping which includes blank shot injections to relieve FRP in an effort to get the FRP as close to 0

psi as

possible. It is possible to see up to 650 psi FRP remain after the 1 minute key off action.

C. Use ServiceMaxx KOEO Continuous Monitor Test to check FRP sensor voltage (FRP: S_FRP volts).

• FRP should be equal or less than 650 psi

• (FRP: S_FRP volts) should be less than .60V

2. If sensor voltage is in specification, go to Step 4. Sensor voltage is referenced in Appendix A in Diagnostic Manual EGES 470.
NOTE:

FRP sensor voltage referenced in the manual is measured at 0 FRP. 0 FRP may not be realized upon each engine shut down.

3. If sensor voltage is not within specification, diagnose per Diagnostic Manual EGES 470 (Electronic Control Systems Diagnostics)

• Following repair, go to Step 6.

4. Perform visual inspection of fuel level, fuel quality and primary fuel filter.

• If concern is discovered and resolved, go to Step 6.

• If concern is not discovered or resolved, go to Step 5.

5. Start with HP Pump Fuel Return Pressure Test found in Special Test Procedures section in the Performance Diagnostics form. Continue to diagnose or
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12/3/2012
IK1200825 - Diagnosing SPN 3055 FMI 17 - FRP Above Maximum with Minimum Com... Page 2 of 2
repair as directed by the Performance Diagnostics form EGED-530 using ServiceMaxx and other special tools as referenced in the form.

• If concern is discovered and resolved, go to Step 6.

• If concern is not discovered and resolved, replace the Fuel Pump and proceed to Step 6.

6. Complete all open AFCs.

7. Perform the following:

• Clear DTCs

• Test Drive Vehicle (Vehicle must reach normal operating temperature)

• Visually inspect all repairs

• Check for DTCs and repair as necessary

WARRANTY

Repair Operations and Modified Performance Diagnostic SRT Operations:

NOTE:

Use only SRT operations that are required.

Hours

0.3

4

0.3

0.3
ProStar

R12-2156U

R12-7454U

R12-2140U

R12-2102L
TranStar

Q12-2156U

Q12-7454U

Q12-2140U

Q12-2102L
WorkStar

N12-2156U

N12-7454U

N12-2140U

N12-2102L
Description

High Pressure Fuel Return Pressure Test

Replace Fuel Pump

Step 2 Visual Inspection

FRP checks
Links Related to SPN 3055 FMI 17 - FRP Above Maximum with Minimum Command:

IK1200538 - 2010 MaxxForce 11 and 13 Fuel System DTC
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12/3/2012

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