IK1200464 Service Bulletin/Repair Instructions

IK1200464 ­ MaxxForce® 11 and 13 Fuel System Diagnostic Codes and Diagnostic Steps
Countries:
CANADA, UNITED

STATES, MEXICO,

PUERTO RICO
Page 1 of 6
Document

IK1200464

ID:
Availability:

Major

System:

Current

Language:

Other

Languages:
ISIS, Bus ISIS, FleetISIS Revision:
5
ENGINES
Created:
2/18/2010
English
Last

Modified:
2/11/2014
Français, Español,
Author:
Jay

Weston
Viewed:
12368

Less Info
Coding Information
Hide Details
Copy Link
Copy Relative

Link
Bookmark
Add to

Favorites
Print
Provide

Feedback
View My

Bookmarks
Helpful
Not Helpful
1493
2486
Title : MaxxForce® 11 and 13 Fuel System Diagnostic Codes and

Diagnostic Steps

Applies To : 2008 - 2009 MaxxForce® 11 and 13
DESCRIPTION
MaxxForce® 11 and 13 Fuel System Codes and Diagnostic Steps.

SYMPTOMS

• DTC's related to the fuel system.

POSSIBLE DIAGNOSTIC TROUBLE CODES
DTC MODULE DESCRIPTION

2244 ECM

2246

2247

2248

2335

2371

2372

3333

6913
ECM

ECM

ECM

ECM

ECM

ECM

ECM

ECM
Fuel rail pressure relief valve opened (pressure was too

high)

FRP above or below desired

HP fuel pump erratic fuel quantity balancing

Fuel rail pressure above maximum

FRP unable to build during engine cranking

Fuel pressure above normal

Fuel pressure below normal

Fuel rail pressure above maximum

AFP above normal with AFD open
https://evalue.internationaldelivers.com/service_kb/DocTool/ArticleViewer.aspx?ControlID... 3/5/2014
IK1200464 ­ MaxxForce® 11 and 13 Fuel System Diagnostic Codes and Diagnostic Steps
Page 2 of 6
ACRONYM DEFINITIONS

FRP - Fuel Rail Pressure Sensor

PLV ­ Pressure Limiting Valve

FPCV - Fuel Pressure Control Valve

HP ­ High Pressure

KOEO - Key On Engine Off

AFP - Aftertreatment Fuel Pressure Sensor

AFD ­ Aftertreatment Fuel Drain Valve

EFP - Engine Fuel Pressure Sensor

AFS - Aftertreatment Fuel Supply Valve

AFT - Aftertreatment

See links at the bottom of this document for more detail with these fuel system acronyms.

DIAGNOSTICS
DTC
MODULE
DESCRIPTION
2244
ECM
Fuel rail pressure relief valve opened (pressure was too high)
The 2244 code is set when the fuel rail pressure is higher than 28,000 psi or can be caused by aerated fuel.

When the fuel rail pressure is higher than 28,000 psi the relief valve will open and return to the tank. Follow the

diagnostic steps below:

• Check the fuel system for aeration.

• Remove the banjo fitting from the HP rail and install ZTSE4887-1 to HP rail. Run the
High Pressure run up test, the test will take the pressure from 7250psi (500bar) to

26,100psi (1800) bar. Note: Its is normal to have a drop or two of fuel returning from the PLV during

this test.
https://evalue.internationaldelivers.com/service_kb/DocTool/ArticleViewer.aspx?ControlID... 3/5/2014
IK1200464 ­ MaxxForce® 11 and 13 Fuel System Diagnostic Codes and Diagnostic Steps
DTC
MODULE
2246
ECM
Page 3 of 6
DESCRIPTION
FRP above or below desired
The 2246 will set if the FRP does not match desired. Possible problems are clogged fuel return or supply line,

FPCV connection loose, excessive fuel return from head or PLV. Follow the diagnostics steps below:

• Perform low pressure fuel diagnostics (aerated fuel and fuel filter restrictions).

• Test drive the truck and record a Performance session snapshot in ServiceMaxx using the NavCom or

Nexiq USB cable for later review. Monitor the FRP to see if it matches the desired FRP.

• Check the return flow from the engine to the tanks for restrictions.

• Check all the electrical connections to the FPCV and FRP. Perform a pin drag test, make sure none of

the terminals are spread and then lock them into place.

• Check the fuel return flow at the back of the head per engine diagnostic manual.

• Check the fuel rail pressure relief valve to see if it is leaking per engine diagnostic manual.

• Check the HP fuel pump fuel pressure supply and return flow.

• Check for aeration in the fuel system with the clear hose provided in the MaxxForce® 11 and 13 tool

kit. If further assistance is need open a case file with Tech Services.
DTC MODULE
DESCRIPTION
2247 ECM
HP fuel pump erratic fuel quantity balancing
The 2247 DTC will set if there is air in the low pressure fuel system, leaks on the high pressure

fuel system, leaking fuel pressure relief valve, aerated fuel, failed injector or failed High

Pressure fuel pump, failed FRP, electrical connections at the FPCV and FRP. Follow the

diagnostics steps below:

• Check the connection at the FPCV and FRP sensor. Also, make sure there are no

external fuel leaks and check for aeration in the fuel.

• Check the inlet fuel restriction and check for restrictions in the return lines to the fuel

tanks.

• Perform a run up test with ServiceMaxx and record the data.

• Perform a high pressure pump test with ServiceMaxx and record the data.

• Check the fuel return flow at the back of the head per engine diagnostic manual.

• Check for fuel leaking from the fuel pressure relief valve per engine diagnostic manual.

• Measure the fuel return flow and pressure from the HP fuel pump per engine diagnostic

manual.

• If further assistance is needed, open a case file with Tech Services.
https://evalue.internationaldelivers.com/service_kb/DocTool/ArticleViewer.aspx?ControlID... 3/5/2014
IK1200464 ­ MaxxForce® 11 and 13 Fuel System Diagnostic Codes and Diagnostic Steps
DTC
MODULE
DESCRIPTION
2248
ECM
Fuel rail pressure above maximum
3333
ECM
Fuel rail pressure above maximum
Page 4 of 6
The 2248 and 3333 DTC's will be set if the fuel pressure stays above desired. Possible

problems are injectors, failed High Pressure fuel pump, bias or failed FPCV and FRP.

Follow the diagnostic steps below:

• Check for aeration and restrictions in the fuel system.

• Check the electrical connection at the FRP and the FPCV.

• Using ServiceMaxx with the KOEO monitor the FRP sensor reading. It should read 0 +/10 psi.

• Perform an injector run up test and see if all the injectors are contributing equally.

• Run the high pressure pump test in ServiceMaxx and monitor the FRP actual and

desired. They should be within +/- 1000 psi of each other.

• Test drive the truck and use ServiceMaxx to monitor the FRP actual and desired to see if

they are still within +/­ 1000 psi range.
DTC MODULE
DESCRIPTION
2335 ECM
FRP unable to build during engine cranking
The 2335 will set when the FRP is unable to build during engine cranking. Possible

problems are clogged primary fuel filter (engine mounted) will cause high fuel pressure

readings on the low fuel system side, Davco filter which will cause low fuel pressure on the low

fuel system side, failed fuel pump, failed HP fuel system or air in the fuel

system. Follow the diagnostic steps below:

• Monitor the low pressure system during cranking ServiceMaxx. If it doesn't achieve 30 to

40 psi at crank continue testing the low pressure fuel system.

• Use ServiceMaxx to monitor the FRP at crank to see if it is matching desired.

• Check the return flow from the back of the head and record.

• Check the Pressure Limiting Valve for return flow at idle, there should be no flow at all.

• If the truck still does not start due to low FRP then unplug the FPCV and monitor the

pressure in ServiceMaxx. It should spike over 28,000 psi and then steady out at 11,600

psi.
https://evalue.internationaldelivers.com/service_kb/DocTool/ArticleViewer.aspx?ControlID... 3/5/2014
IK1200464 ­ MaxxForce® 11 and 13 Fuel System Diagnostic Codes and Diagnostic Steps
DTC MODULE

2371 ECM
Page 5 of 6
DESCRIPTION

Fuel pressure above normal
Code 2371 will set when the low fuel pressure side is above 145 psi. Possible problems are

clogged primary fuel filter (engine mounted), clogged fuel return, such as bent or kinked fuel

lines. Follow the diagnostic steps below:

• Diagnose the low fuel pressure system as outlined in the diagnostic manual.

• Check the primary fuel filter (engine mounted) for plugging.

• Check the fuel return lines for any restrictions or pinched lines, repair as needed.

DTC MODULE

2372 ECM
DESCRIPTION

Fuel pressure below normal
The 2372 code will set anytime the low pressure fuel system is below 45 psi. Possible aerated

fuel, plugged secondary fuel filter (Davco filter, chassis mounted) and a failed fuel filter stand

pipe can be the cause. Follow the diagnostic steps below:

• Check the low pressure fuel system for aeration.

• Verify the EFP sensor is reading correctly with a manual gauge and what the AFP is

reading.

•

Check the Davco system for the correct filter installed, 50 ppm FS19729 for winter and 7

ppm FS19624 for summer.

• If code 2372 and 6913 are active check the fuel filter stand pipe. The top of the stand

pipe should be flat at the edges and level all the way around (no raised sides or lips), see

IKNow article IK1500045

DTC
MODULE
DESCRIPTION
6913
ECM
AFP above normal with the AFD open
Code 6913 is set when there is fuel pressure detected by the AFP when the AFD valve is open. Possible stuck

closed AFD, failed AFP, corroded or damaged AFP circuit. Follow the diagnostic steps below:

• Check the wires for breaks inside the insulation at the connectors for the AFP, AFS and AFD.

• Cut out all zip ties that are pulling on the harness tightly and open up the wire loom for inspection in

these areas.

• Check for bent, pushed back or corroded terminals at the ACM connectors.

• Run the AFT system leak test in ServiceMaxx while in the Aftertreatment session. Monitor the AFS, when

it opens the AFP should match EFP. When the AFD opens and the AFS closes the AFP should drop

down to 0 psi +/- 3 psi.

OTHER RESOURCES
MaxxForce® 11 and 13 Engine Wiring Diagram 1
https://evalue.internationaldelivers.com/service_kb/DocTool/ArticleViewer.aspx?ControlID... 3/5/2014
IK1200464 ­ MaxxForce® 11 and 13 Fuel System Diagnostic Codes and Diagnostic Steps
Page 6 of 6
MaxxForce® 11 and 13 Engine Wiring Diagram 2

EGES420-2 Low Pressure Fuel System

EGES420-2 High Pressure Fuel System

EGES420-2 Fuel Quality

Engine Diagnostic Manual for MaxxForce® 11 and 13 Fuel System EGES420-2
Hide Details
Feedback Information

Viewed:
12367
Helpful:
1493
Not Helpful: 2486

No Feedback Found
Copyright © 2014 Navistar, Inc.
https://evalue.internationaldelivers.com/service_kb/DocTool/ArticleViewer.aspx?ControlID... 3/5/2014

SaleBestseller No. 1

ANCEL X7HD 10'' Heavy Duty Truck Scanner, Semi Trucks Full System Diagnostic Tool, Bidirectional Diesel Scan Tool with DPF, ECU Coding, 40+ Reset for Cummins, Detroit, Caterpillar, Volvo, Paccar etc

🔥🔥🔥2026 New Functions Making X7HD the Top Dog - Big Surprise!!! ANCEL X7HD truck scanner 10 major functional advantages .✅>Full HDOBD/OBD2 Function ✅>ALL System Diagnostic ✅>42+ Reset Function ✅>Active Test / Bi-Directional Control✅>ECU Coding✅>Graphing Live Data✅>Wide Compatibility ✅>2 Yrs Free Update✅>Remote Operation✅>Bluetooth 5.0 & Wifi In addition, 8 major hardware advantages: ✅>6000 mAh✅>10.1 inch Tablet✅>2G RAM✅>32G ROM (Expandable to 128GB)✅>Data Record & Replay & Print✅>Android 10.0✅>Bluetooth 5.0 & Wifi✅>14 Languages
🚛OEM DPF Forced Regen & Cylinder Cutout Test & more - ANCEL X7HD diesel scanner diagnostic tool not only supports DPF regeneration, DPF reset, DPF related information reset, DPR state reset, DPD forced regeneration etc, which helps you better solve the exhaust aftertreatment system problems, but also supports activate motor to do exhaust air in ABS Automatically. Moreover, it features TPMS activation, cylinder cut-off and learning functions
🚛Advanced ECU Coding & Programming - ANCEL X7HD 10.1inch truck scanner diagnostic tool is equipped with advanced ECU coding, supports Level calibration, Idle speed learning and Adjustment, Camshaft timing control learning, Control unit adaptations, Injector Codes, Read/Write VIN, Road speed limit optional vehicle speed set, etc... PLEASE NOTE that ECU codes are not compatible with all vehicles, please send us your VIN# to check vehicle compatibility
🚛42+ Reset Functions & Bidirectional Control - 2026 newest top heavy duty truck scan tool, comes with 42+ special services (ECU, Speed Limit and Idle Reset, Oil Reset, Injector Coding, EPB, ABS, SRS, Suspension, Throttle, etc. and always keep growing), which meet all your various needs for service and maintenance
🚛10 Inch All Systems Diesel Scanner & Full HDOBD/OBD2 Modes - ANCEL X7HD diesel truck scan tool supports all systems scan, such as Engine, Brake, Retarder, TECU Transmission, Tachograph, ABS, SRS, TPMS, EPB, SAS, ESP, and other vehicle systems, comes with 10 obd2 service modes: read/erase error codes, Data Stream, I/M Readiness, Vehicle Information, Actuations, DTC Lookup, EVAP, view freeze frame, etc

SaleBestseller No. 2

ANCEL Heavy Duty Truck Scanner HD601 All System Diesel Diagnostic Scan Tool fits for Cummins, Detroit, Freightliner, International, Paccar, Check Engine for Truck & Car 2 in 1 Code Reader

【Extensive Compatibility】HD601 heavy duty truck scanner supports 12V & 24V commercial vehicles and all major truck models that comply with standard protocols (SAE J1939, SAE J1708, ISO 14230-4, ISO 15765-4 and ISO 9141-2, ISO 27145-4 and Euro6). Fits for Cummins, Paccar, Detroit, Caterpillar, Freightliner, International, Peterbilt, Ford Heavy Truck, Class 4-Class 8 trucks, etc. It also supports engine diagnosis on most cars, minivans, light trucks and pickups
【 Full System Diagnostic】HD601 Diesel Scanner supports all system scans of heavy trucks compliant with standard protocols SAE J1939 & J1708, such as Engine, ABS, Transmission, Braking System, ESP, EPS, Fuel System, etc, It is a great scan tool for Cummins, Caterpillar, Detroit, Caterpillar, Maxxforce, Bendix,Wabash, Wabaco, Haldex, Allison, Eaton heavy trucks, With this truck tool, you can get deep analysis data about the system and do some repairs by yourself, saving much time and money. Note: Only heavy truck vehicles that comply with the above protocol can diagnose the entire system
【Enhanced Diesel OBD Scanner】The HD601 Diesel OBD Scanner offers unparalleled diagnostic capabilities for heavy-duty trucks. Beyond code reading, clearing, and live data display, it retrieves vehicle information, freeze frames, and DTCs. With 6, 9, and 16 pin cables, it ensures compatibility with various engines. This scanner's real-world testing prowess ensures comprehensive support for a wide array of heavy-duty truck engines, making it an indispensable tool for truck diagnostics
【DTC Library】+【Life Time Free Update】The built-in DTC library allows you to retrieve the codes directly without searching for the definition in the book. Whether you are a professional mechanic or a DIY car owner, HD601 diesel scanner explains the existing problem, makes it easier for you to understand code definitions and helps you locate vehicle faults. Note: This device cannot directly solve the fault. Plus, you get a lifetime free internet updates, so you always have the latest software for diagnostics in English and Spanish languages.
【Friendly Design, Easy of Use】This scanner is plug and play, simple and convenient, and very friendly for beginners. With improved buttons for easy menu navigation. The excellent 2.8 inch LCD color screen makes it easy to view the displayed results and gives you a better overview of your car's problem areas and the identified codes. In addition, the processor is super-fast and responds without lagging, providing maximum comfort and efficiency in diagnostic and service work

SaleBestseller No. 3

NEXAS Heavy Duty Truck Scanner NL102 Full System Diesel Truck Scan Tool for Cummins, Isuzu, Freightliner, Caterpillar, Detroit, Peterbilt, 2-in-1 Code Reader Read & Clear Fault Codes for Truck & Car

Why NEXAS NL102 Truck Scan Tool? The NL102 outshines other truck scanner with its extensive diagnostic features. It offers full system diagnostics for major trucks meeting standard protocols, along with complete OBD2 functionality. Beyond read fault codes, clear codes and live data display, it enables vehicle info retrieval, freeze frame capture, and DTC lookup. Equipped with 6-pin, 9-pin, 16-pin connectors, it ensures broad truck compatibility. Plus, enjoy lifetime free updates in English, Spanish, and French, keeping your diagnostic scanner software current.
Wide Compatibility - Friendly Reminder: To avoid compatibility issues, please confirm with us via Amazon Messages before purchasing. This heavy duty truck scanner is compatible with all heavy-duty trucks and semi that adhere to standard protocols (J1587, J1939, J1708). It covers a wide range of vehicle models, including Cummins, Detroit, Caterpillar, Freightliner, International, Kenworth, John Deere, Peterbilt, Sterling, Mack, Paccar, Western Star, Mercedes-Benz, Volvo, Scania, MAN, Renault, ERF, Foden, Seddon-Atkinson, Iveco, DAF, SISU, STEYR, ISUZU etc. Equipped with 6-pin, 9-pin, and 16-pin connectors for versatile device compatibility, ensuring stable plug-and-play connections.
Save Hundreds of Money for All Heavy Duty Trucks – This diesel diagnostic scanner supports accurate full-system scans for all heavy-duty trucks that comply with standard protocols (J1587, J1939, and J1708). It can read and clear trouble codes across a range of vehicle systems, including the engine, transmission, instrument panel, drivetrain, brake system, suspension, ABS, ESP, EPS, fuel system, etc. The truck scanner communicates directly with your truck's computer to provide real-time data stream analysis, letting you pinpoint issues with precision. This cuts down on waste from unnecessary part replacements, saving you time and hundreds or even thousands of dollars.
All OBD2 Functions + Battery Health Monitoring – Unlike many obd2 scanners on the market that only cover partial OBD2 features, ours gives you full OBD2 capability: read & clear codes, live data, freeze frame data, I/M readiness checks, EVAP tests, on-board monitor, O2 sensor tests, vehicle info, and DTC lookup. That means more detailed insights for pros and DIYers alike. The NL102 isn't just a code scanner – it's a battery saver. Regularly check your car's battery health, and catch issues before it dies completely. No more unexpected no-starts in the driveway or on the road. It diagnoses battery condition accurately, helping you avoid costly last-minute repairs.
Plug and Play & One-click for DTC: NEXAS diesel scanner is user-friendly. It comes with an intuitive screen and easy-to-understand interface, making it accessible even for non-professionals to get started. And the built-in DTC library in the code reader allows you to directly retrieve codes without searching for definitions in books, making it easier to understand the code definitions and solve problems more quickly.

This product presentation was made with AAWP plugin.

Last update on 2026-05-12 / Affiliate links / Images from Amazon Product Advertising API

Buffer Email Facebook Flipboard Hacker News LinkedIn Messenger Mix Pinterest Print Reddit SMS Telegram Tumblr X VK WhatsApp Line Xing Threads Bluesky Copy Mastodon Nextdoor