C175 Petroleum Engine Caterpillar

Inlet Air Is Restricted

Usage:

Use this procedure to troubleshoot a high differential pressure for the air inlet system. Also, use this procedure if one of the following event codes is active or logged.

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Table 1
J1939 Code and Description	CDL Code and Description	Comments
107-15 Engine Air Filter 1 Differential Pressure : High - least severe (1)	E583 (1) High Engine Air Filter #1 Differential Pressure	The engine power may be derated. The code is logged.
107-16 Engine Air Filter 1 Differential Pressure : High - moderate severity (2)	E583 (2) High Engine Air Filter #1 Differential Pressure	The engine power may be derated. The code is logged.
2809-15 Engine Air Filter 2 Differential Pressure : High - least severe (1)	E584 (1) High Engine Air Filter #2 Differential Pressure	The engine power may be derated. The code is logged.
2809-16 Engine Air Filter 2 Differential Pressure : High - moderate severity (1)	E584 (2) High Engine Air Filter #2 Differential Pressure	The engine power may be derated. The code is logged.

Probable Causes

Air filter element
Enclosure

Recommended Actions

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Table 2
Troubleshooting Test Steps	Values	Results
1. Check for Damaged or Plugged Air Filter Elements	Air Filter Element	Result: The air filter element is not plugged and the piping is not restricted. Proceed to Test Step 2. Result: The air filter element is plugged or the piping is restricted. Repair: Clean or replace the air filter element. If the problem is not resolved, proceed to Test Step 2.
2. Inspect the Enclosure A. Check that the engine has been installed in an enclosure that is sufficiently ventilated.	Enclosure	Result: The engine enclosure is not sufficiently ventilated. Repair: Repair the ventilation for the enclosure. Verify that the repair eliminated the problem.

If the procedure did not correct the issue, contact your Cat dealer Technical Communicator (TC). For further assistance, your TC can confer with the Dealer Solutions Network (DSN).