B5.9G, B5.9LPG, B Gas Plus, B LPG Plus, and B Gas International Engines – Engine Speed Surges in PTO or Cruise Control

Electronic fault codes are active

For instructions on how to read active fault codes, refer to Procedure 101-007 (Electronic Controlled Fuel System) in Section 1. If fault codes are active, contact a Cummins Authorized Repair Facility.

Engine speed also surges at idle

Refer to the Engine Speed Surges at Low or High Idle symptom tree.

Engine speed surges while in the normal operating range and not in PTO or cruise control

Refer to the Engine Speed Surges Under Load or in Operating Range symptom tree.