HOSE 3819200 - Caterpillar

Table 1
Event Code    
Code and Description    Conditions which Generate this Code    System Response    
E004(3) Engine Overspeed Shutdown     The engine rpm has exceeded the trip point for engine overspeed for the delay time.     The air shutoff will be activated. The engine will shut down.
Power must be cycled to the engine Electronic Control Module (ECM) in order to reset the code.
The code is logged.    
E190(1) Engine Overspeed Warning     The code is logged. Probable Causes
Intake air is combustible.
Sudden drop of loadRecommended Actions
Intake Air is Combustible
Check for hydrocarbons in the surrounding atmosphere. Do not operate the engine in an environment with hydrocarbons in the surrounding atmosphere.Sudden Drop of Load
Decrease the load on the engine gradually.