Komatsu · CA2249
Common Rail Pressure Too Low
What this code means
Common rail (fuel) pressure is too low (very low manifold/rail pressure).
Applies to: PC200-8 excavator (engine controller).
Possible causes / checks (from the source)
Komatsu South Africa customer bulletin: when CA2249, CA428 and CA559 occur, fuel line clogging or fuel contamination may be the cause.
Need the part?
If diagnosis points to a failed sensor, solenoid, controller or harness part, send us the code (CA2249), machine model and serial number — we quote genuine and OEM replacement parts for export.
Ask for the replacement part on WhatsAppSource: ProCarManuals – Komatsu Fault/Error Codes list (manual library). Single published source — confirm against the manual for your exact model before ordering parts. Compiled 2026-10-30. No manufacturer affiliation.