BUSHING 1F0929 - Caterpillar

Use this procedure in order to troubleshoot a high fuel flow in the high-pressure fuel system. Also, use this procedure if the following event code is active.
Table 1
Event Code
CDL Code Description Conditions which Generate this Code
E398(3) Engine Injector Metering Rail #1 Pressure : Low - Most Severe (3) The fuel rail pressure is lower than expected.
E398(1) Engine Injector Metering Rail #1 Pressure : Low - Least Severe (1) The fuel rail pressure is lower than expected.
E398(2) Engine Injector Metering Rail #1 Pressure : Low - Moderate Severity (2) The fuel rail pressure is lower than expected.
E1106(2) Engine Fuel Flow Rate #1 : High - Moderate Severity (2) The fuel flow through the fuel system is higher than expected, indicating leakage.
Table 2
Associated Codes
J1939 Code CDL Code
95-0 E390(3)
95-15 E390(1)
95-16 E390(2)
5578-3 289-3
5578-4 289-4
5580-3 460-3
5580-4 460-4
5580-17 E198(1)
5580-18 E198(2) 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. Diagnostic Codes and Event Codes
A. Turn the keyswitch to the "ON" position.
B. Connect Caterpillar Electronic Technician (ET) to the service tool connector. Refer to Troubleshooting, "Electronic Service Tools", if necessary.
C. Determine if the diagnostic trouble code that directed to this procedure is present.
D. Look for active diagnostic codes that are associated with the system for the event code that directed to this procedure.
Codes
Result: An associated code is present.
Repair: Troubleshoot any associated codes before continuing with this test.
Refer to the appropriate troubleshooting story.
Result: An E398, 157-1, 157-17, or 157-18 code is present.
Proceed to Test Step 2.
Result: An E1106 or 1440-16 code is present.
Proceed to Test Step 2.
2. Check the Low Pressure Fuel System
A. Start the engine.
B. Connect Cat ET to the service tool connector.
C. Monitor the "Fuel Pressure (absolute)" and "Atmospheric Pressure" parameters in Cat ET.
D. With the engine running at low idle, record the "Fuel Pressure (absolute)" value.
E. With the engine running at high idle, record the "Fuel Pressure (absolute)" value.
F. Subtract the "Atmospheric Pressure" from each recorded value to determine the gauge value.
Note: The "Fuel Pressure (absolute)" and the "Atmospheric Pressure" readings are in absolute values. By subtracting the "Atmospheric Pressure" from the "Fuel Pressure (absolute)" readings, a gauge value is determined.
Pressure
Result: The gauge value is greater than 250 kPa (36 psi) at low idle and greater than 450 kPa (65 psi) at high idle.
Proceed to Test Step 3.
Result: The gauge value is less than 250 kPa (36 psi) at low idle and/or less than 450 kPa (65 psi) at high idle.
A problem has been detected with the low-pressure fuel system.
Refer to Troubleshooting, "Fuel Pressure Is Low (Fuel Transfer System)" in order to troubleshoot the cause of the low pressure.
3. Diagnostic Codes and Event Codes
A. Turn the keyswitch to the "ON" position.
B. Connect Cat ET to the service tool connector.
C. Determine if the diagnostic trouble code that directed to this procedure is present.
Codes
Result: An E398, 157-1, 157-17, or 157-18 code is present.
Proceed to Test Step 4.
Result: An E1106 or 1440-16 code is present.
Proceed to Test Step 8.
4. Check the