Inlet Air Is Restricted
Use this procedure if the following event code is active. Refer to Troubleshooting, "Event Code List" 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. |
- 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.
Caterpillar Information System:
C32 Marine Auxiliary Engines Speed/Timing - Test
C9 Agricultural Engine for Challenger Tractors Engine Overspeeds
C9 Agricultural Engine for Challenger Tractors Fuel Pressure Is High
C9 Agricultural Engine for Challenger Tractors Fuel Pressure Is Low
C9 Agricultural Engine for Challenger Tractors Coolant Level Is Low
C32 Marine Propulsion Engines Speed/Timing - Test
2007/07/09 A Gasket for the Cooling System has been Improved {1380, 7555}
3176C, 3406E and 3456 Industrial Engines Engine Does Not Crank
C15 and C18 Industrial Engines Engine Cranks but Does Not Start
C15 On-Highway Engine Combustion Head Group (ARD) - Remove and Install
3516C Locomotive Engine Model View Illustrations
3516C Locomotive Engine Electrical System
C9 Agricultural Engine for Challenger Tractors Coolant Temperature Is High
2007/07/23 A New Oil Line for the Turbocharger {1307}
2007/06/11 Troubleshooting the Wiring Harness for the Fuel Injector {1408}
C15 and C18 Petrolem Generator Set Engines ECM - Replace
C11 and C13 Petroleum Engines Electronics Grounding Stud - Inspect/Clean/Tighten
C32 Petroleum Engines Fan Drive Bearing - Lubricate
3176C, 3406E and 3456 Industrial Engines Factory Passwords
C18 Marine Engines Synchronization - Test
2007/05/21 A "Do Not Weld" Film is Used {7557}
2007/05/14 Do Not Allow the Engine Status Control Module to Overheat {1901, 7490}
C9 Agricultural Engine for Challenger Tractors Fuel Filter Differential Pressure - Test
Elevated Amounts of Potassium and Aluminum in Oil Samples on 2007 On-Highway Engines{0645} Elevated Amounts of Potassium and Aluminum in Oil Samples on 2007 On-Highway Engines{0645}