Inlet Air Is Restricted
Use this procedure if the following event code is active. Refer to Troubleshooting, "Event Codes" for information about event codes and the default trip points for these codes. You must access the monitoring system on Caterpillar Electronic Technician (ET) in order to view the current trip points for these codes.
Show/hide table
| Event Code | ||
|---|---|---|
| Code and Description | Conditions which Generate this Code | System Response |
| E272(1) Inlet Air Restriction Warning | The inlet air restriction is above the trip point pressure for the delay time. | The code is logged. |
| E031(2) Air Filter Restriction Derate | The engine is derated. The code is logged. | |
- Air filter element
Check the air intake system for plugged air filters or for damaged air filters. If the engine is equipped with an air intake precleaner, verify the proper operation of the air intake precleaner.
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