58130-ZV5-850ZA Honda PROPELLER, THREE-BLADE (Honda Code 3705175). (11-1/2X12) *NH283* (STIN GRAY)

Table 1
Event Code
Code and Description Conditions which Generate this Code System Response
E245(1)
High Right Turbo Turbine Inlet Temperature The exhaust temperature is above the trip point temperature. The code is logged.
E245(2)
High Right Turbo Turbine Inlet Temperature The engine is derated.
The code is logged.
E245(3)
High Right Turbo Turbine Inlet Temperature The code is logged.
The engine is shutdown.
E246(1)
High Left Turbo Turbine Inlet Temperature The exhaust temperature is above the trip point temperature. The code is logged.
E246(2)
High Left Turbo Turbine Inlet Temperature The engine is derated.
The code is logged.
E246(3)
High Left Turbo Turbine Inlet Temperature The code is logged.
The engine is shutdown.
E278(2)
High Exhaust Differential Temperature The differential temperature for the exhaust is above the trip point temperature. The code is logged.
E1459 (1)
High Turbocharger #1 Turbine Intake Temperature The exhaust temperature is above the trip point temperature. The code is logged.
E1459 (2)
High Turbocharger #1 Turbine Intake Temperature The engine is derated.
The code is logged.
E1459 (3)
High Turbocharger #1 Turbine Intake Temperature The code is logged.
The engine is shutdown.
E1460 (1)
High Turbocharger #2 Turbine Intake Temperature The exhaust temperature is above the trip point temperature. The code is logged.
E1460 (2)
High Turbocharger #2 Turbine Intake Temperature The engine is derated.
The code is logged.
E1460 (3)
High Turbocharger #2 Turbine Intake Temperature The code is logged.
The engine is shutdown. Note: A E245 code is the same as a E1460code. A E246 code is the same as a E1459code.If the engine is shutdown due to a high turbocharger turbine inlet temperature, the power to the engine Electronic Control Module (ECM) must be cycled to restart the engine.Probable Causes
Diagnostic codes and event codes
Inlet air temperature is high
Incorrect valve lash
Exhaust temperature is high
Air Inlet or Exhaust System Leak
Air Inlet or Exhaust System Restriction
Aftercooler
Fuel injectors
Wastegate valve (High Altitude Only)Recommended Actions
Note: The procedures have been listed in order of probability. Complete the procedures in the order of the listed test steps.
Table 2
Troubleshooting Test Steps Values Results
1. Check for Codes
A. Connect Caterpillar Electronic Technician (ET) to the service tool connector. Refer to Troubleshooting, "Electronic Service Tools", if necessary.
B. Download the "Product Status Report" from the engine ECM before performing any troubleshooting or clearing diagnostic trouble codes.
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.
E245
E246
E278
Result: An associated code is present.
Repair: Troubleshoot any associated codes before continuing with this test.
Result: An E245, E246, or E278 code is present.
Proceed to the next step.
Result: No active codes
STOP
2. Check for High Inlet Air Temperature
A. Refer to Troubleshooting, "Intake Manifold Air Temperature Is High".
A one degree increase in the inlet manifold temperature will increase the exhaust temperature by approximately three degrees.
Inlet air
temperature
Result: The inlet air temperature is OK.
Proceed to the next step.
Result: The inlet air temperature is NOT OK.
Repair: Determine the cause of the high inlet air temperature and correct the problem.
If the problem is not resolved, proceed to the next step.
3. Incorrect Valve Lash
A. Check the engine valve lash.
Valve lash
Result: The valve lash is OK.
Proceed to the next step.
Result: The valve lash is NOT OK.
Repair: If necessary, adjust the engine valve lash. Refer to Systems Operation/Testing and Adjusting for information on adjusting the engine valve lash.
If the problem is not resolved, proceed to the next step.
4. Check for High Exhaust Temperature
A. Inspect the turbine inlet temperature probes and thermowells on each side of the engine. Ensure that the temperature probes are reading correctly
B. Refer to Test and Adjust, "Measuring Exhaust Temperature".
C. Install thermocouples or check individual cylinders with an infrared gun. Maintain a steady load and speed during the measurement to ensure an accurate comparison of each cylinder.
Exhaust
temperature
Result: The exhaust temperature probes are not reading correctly.
Repair: Clean, Repair, Replace temperature probes and Thermowells.
Repair: All cylinders have comparable temperatures then proceed to step 4
Repair: One or more of the cylinders deviate significantly from the average temperature on that bank, proceed to step 8
5. Check the Air Inlet System
A. Check the compressor inlet pressure for each turbocharger.
B. Check for restriction or blockage from the compressor discharge back to the engine.
C. Check for air leaks. Inspect all hoses, tubes, bellows, and clamps from air inlet to the inlet manifold.
Air inlet
Result: Compressor inlet pressures are equal on each turbocharger.
Repair: Check for boost side or exhaust side air leaks.
Proceed to the next step.
Result: Compressor inlet pressures are not equal on each turbocharger.
Repair: Check for plugged air filters or restriction between the filter and the turbocharger compressor.
Result: The compressor discharge back to engine is OK.
Proceed to the next step.
Result: The compressor discharge back to the engine is NOT OK.
Repair: Remove restriction or blockage
Result: The engine has No Air Leaks.
Proceed to the next step.
Result: The engine has Air Leaks..
Repair: Determine the cause of the air leak and repair damage or leaking components.
If the problem is not resolved, proceed to the step 6.
6. Check the Exhaust System
A. Refer to Test and Adjust, "Restriction of Air Inlet and Exhaust".
B. Inspect the exhaust system lines and all hoses, tubes, bellows connections from the exhaust manifold to the muffler. Also, inspect the bellows for cracks or loose clamps. Spray the joints with soapy water and inspect for leaks.
C. Verify that all the bellows have the correct orientation. Ensure that the arrow on the bellows is pointing in the correct direction of exhaust flow.
Exhaust system
Result: The air system lines and connections are OK.
Proceed to the next step.
Result: The air system lines and connections are NOT OK.
Repair: If anything is loose or cracked replace or repair any issues.
If the problem is not resolved, proceed to the step 7.
7. Check the Aftercooler
A. Normal intake manifold pressure with high exhaust temperature can be caused by blockage of the fins of the aftercooler core.
B. Check for leaks and/or damage to the aftercooler.
Aftercooler
Result: The aftercooler is OK.
Proceed to the next step.
Result: The aftercooler is NOT OK.
Repair: Clear restrictions and replace aftercooler or any damaged lines.
If the problem is not resolved, proceed to the next step.
8. Check the Fuel Injectors
Faulty injectors that deliver too much fuel will increase exhaust temperatures.
A. Connect Cat ET to determine if