KIT-SEAL 4812717 - Caterpillar

Table 1
Code for Inlet Air Restriction    
CDL Code    Description    Information    
E583-1     High Engine Air Filter #1 Differential Pressure - Level 1     The differential pressure across the air filter exceeds
7.5 kPa (1.1 psi) for 30 seconds.
The engine has been operating for 3 minutes.
The warning lamp will come on.
The code will be reset when the keyswitch is turned to the OFF position.    
E583-2     High Engine Air Filter #1 Differential Pressure - Level 2     This code indicates multiple occurrences of an E583-1 event code.
The warning lamp will come on.
The engine will be derated.    These event codes normally indicate high air filter restriction. Refer to Systems Operation, Testing, and Adjusting, "Air Inlet and Exhaust System - Inspect".