 |
The connection of any electrical equipment and the disconnection of any electrical equipment may cause an explosion hazard which may result in injury or death. Do not connect any electrical equipment or disconnect any electrical equipment in an explosive atmosphere. |
 |
Probable Causes
- Diagnostic codes
- Electrical connectors
- Air inlet and exhaust system
Recommended Actions
Diagnostic Codes
Connect the Caterpillar Electronic Technician (ET) and check for active diagnostic codes. Troubleshoot any active diagnostic codes before continuing with this procedure. An active diagnostic code that is related to the speed/timing sensor calibration may cause the exhaust temperature to be high.
Electrical Connectors
Check for correct installation of the J2/P2 Electronic Control Module (ECM) connector and the unit injector connectors. Refer to Troubleshooting, "Electrical Connectors - Inspect" for more information.
Air Inlet and Exhaust System
- Check the air inlet manifold pressure. Refer to Systems Operation/Testing and Adjusting, "Inlet Manifold Pressure - Test" for more information.
- Check for air inlet restrictions and/or leaks. Check for leaks between the exhaust manifold and the turbocharger. Check for exhaust restrictions. Refer to Systems Operation/Testing and Adjusting, "Air Inlet and Exhaust System - Inspect" for more information.