TUBE AS 3373443 - Caterpillar

Table 1
Event Code
Description Conditions which Generate this Code System Response
E092 Boost Pressure Above Normal The actual boost pressure is above the desired boost pressure. The code is logged and the code is active. Probable Causes
Leaking wastegate diaphragm
Air supply
Wrong Full Load Setting (FLS)Recommended Actions
Leaking Wastegate Diaphragm
Verify that the exhaust bypass valve for the wastegate can open. Use Caterpillar Electronic Technician (ET) to override the wastegate to 100 percent. Perform a torque converter stall test. After 30 seconds, a low boost pressure event should result. If a low boost pressure event occurs, the wastegate is opening properly.Air Supply
Verify that the air supply to the wastegate control valve is at least 345 kPa (50 psi).Wrong FLS
Check that the FLS is correct.