0334761 JOHNSON NIPPLE, Lower engine cover

Table 1
J1939 Code and Description CDL Code and Description Comments
157-17
Engine Injector Metering Rail #1 Pressure : Low - least severe (1) E398 (1)
Low Fuel Rail Pressure The fuel rail pressure is below an acceptable level.
The code is logged. The check engine light will illuminate.
157-18
Engine Injector Metering Rail #1 Pressure : Low - moderate severity (2) E398 (2)
Low Fuel Rail Pressure The fuel rail pressure is below an acceptable level. The code is logged. The check engine light will illuminate.
1440-0
Engine Fuel Flow Rate #1 : High - most severe (3) E1106 (3)
High Fuel Rail Pump Flow There is excessive leakage in the high-pressure fuel system. The code is logged. The check engine light will illuminate.
1440-15
Engine Fuel Flow Rate #1 : High - least severe (1) E1106 (1)
High Fuel Rail Pump Flow There is excessive leakage in the high-pressure fuel system. The code is logged. The check engine light will illuminate.
1440-16
Engine Fuel Flow Rate #1 : High - moderate severity (2) E1106 (2)
High Fuel Rail Pump Flow There is excessive leakage in the high-pressure fuel system. The code is logged. The check engine light will illuminate.
5585-17
Engine Injector Metering Rail #1 Cranking Pressure : Low - least severe (1) E1220 (1)
Low Cranking Fuel Rail Pressure The fuel rail pressure is too low while cranking. This action can be caused by a fuel system service prior to starting the engine.
Table 2
Associated Codes
J1939 Code CDL Code Troubleshooting Procedure
95-0 E390(3) Troubleshooting, "Fuel Filter Is Restricted"
95-15 E390(1) Troubleshooting, "Fuel Filter Is Restricted"
95-16 E390(2) Troubleshooting, "Fuel Filter Is Restricted"
5578-3 289-3 Troubleshooting, "Sensor Signal (Analog, Active) - Test"
5578-4 289-4 Troubleshooting, "Sensor Signal (Analog, Active) - Test"
5580-3 460-3 Troubleshooting, "Sensor Signal (Analog, Active) - Test"
5580-4 460-4 Troubleshooting, "Sensor Signal (Analog, Active) - Test"
5580-17 E198(1) Troubleshooting, "Sensor Signal (Analog, Active) - Test"
5580-18 E198(2) Troubleshooting, "Sensor Signal (Analog, Active) - Test" Caterpillar Channel 1 Videos
For supplemental information for the 3500 & C175 High Pressure Fuel Line Leaks on Engines Using the CR-C Fuel System troubleshooting procedure, refer to the following video:Note: A CWS login is required to access Caterpillar Channel 1. Scan the QR code below with a QR enabled device or copy the link that follows.
Illustration 1 g06558138https://channel1.mediaspace.kaltura.com/media/1_nnrmcene
Probable Causes
Diagnostic codes and event codes
Pressure relief valve leakage
High-pressure fuel pump leakage
High-pressure fuel rail leakage
Fuel control valve problemRecommended Actions
Table 3
Troubleshooting Test Step Value Result
1. Check for Codes
A. Apply electrical power to the engine.
B. Connect Cat® Electronic Technician (ET) to the service tool connector.
C. Apply electrical power to the engine.
D. Look for active codes that are associated with the system for the event code.
Codes
Result: An associated code is active.
Refer to the appropriate troubleshooting story.
Result: An E1220 or a 5585–17 code is present.
Proceed to Test Step 2.
Result: An E398, E1106, 157, or a 1440 code is present.
Proceed to Test Step 3.
2. Check the Service History.
A. An E1220 or 5585-17 code can be caused by a recent service on the fuel system. If the high-pressure system was not primed after the last service, this code will log.
B. Prime the fuel system.
C. Apply electrical power to the engine.
D. Connect Cat ET.
E. Clear the fault E1220 or 5585-17 code.
F. Start the engine.
Code
Result: An E1220 or a 5585-17 code came active after clearing.
Proceed to Test Step 4.
Result: An E1220 or a 5585-17 code did not come active.
The high-pressure fuel system was not properly primed.
Proceed to Test Step 12.
3. Perform a "Fuel System Functional Test"
A. Apply electrical power to the engine.
B. Connect Cat ET.
C. Start the engine.
D. Perform the "Fuel System Functional Test".
E. Once the test has completed, remove electrical power from the engine.
F. Wait for 2 minutes to allow the pump diagnostics to run.
G. Apply electrical power to the engine.
H. Connect Cat ET.
I. Check for active diagnostic codes.
Test Successful
Result: The "Fuel System Functional Test" passed successfully and there are no active codes.
Repair Complete.
Result: There was a 1684 or 1077 code present after running the "Fuel System Functional Test".
A failed high-pressure fuel pump has been detected.
Release the pressure in the high-pressure rail by loosening the end plug on one of the last two fuel accumulators. Refer to Testing and Adjusting, "Fuel Rail Pressure - Release" for instructions on how to release the pressurized fuel.
Repair: Replace the high-pressure fuel pump.
Proceed to Test Step 12.
Result: The test failed for an E111F - Fuel Flow Too Low.
A failed high-pressure fuel pump has been detected.
Release the pressure in the high-pressure rail by loosening the end plug on one of the last two fuel accumulators. Refer to Testing and Adjusting, "Fuel Rail Pressure - Release" for instructions on how to release the pressurized fuel.
Repair: Replace the high-pressure fuel pump.
Proceed to Test Step 12.
Result: The test failed for an E111D - Fuel Rail High Pressure Decay Too High
Proceed to Test Step 4.
Result: The test failed for an E111E - Fuel Rail Low Pressure Decay Too High
Proceed to Test Step 4.
4. Verify the Fuel Rail Pressure Sensor Reading
A. Remove electrical power from the engine.
B. Release the pressure in the high-pressure rail by loosening the end plug on one of the last two fuel accumulators. Refer to Testing and Adjusting, "Fuel Rail Pressure - Release" for instructions on how to release the pressurized fuel.
C. Apply electrical power to the engine.
D. Connect Cat ET.
E. Monitor the "Fuel Rail Pressure" parameter in Cat ET.
Fuel Pressure
Result: The "Fuel Rail Pressure" is 0 8 MPa (1160 psi).
Pr