Centinel System – Repair Manual – Engine Starts But Will Not Keep Running

Electronic fault codes active or high counts of inactive fault codes

Refer to Section TF in the Troubleshooting and Repair Manual, CM870 Electronic Control System, Signature and ISX Engines, Bulletin 4021334.
Also, refer to Section TF in the Troubleshooting and Repair Manual, Electronic Control System, Signature, ISX and QSX Engines, Bulletin 3666259.
Also, refer to Section TF in the Troubleshooting and Repair Manual, Power Generation Control Systems QSX15, QSK23, QSK45, QSK60, QSK78, and QST30 Series Engines, Bulletin 4021419, for fault code troubleshooting.

Idle shutdown or PTO shutdown features are activated

Turn OFF the keyswitch for 5 seconds. Turn ON the keyswitch and check fault lamp operation. Use INSITE™ electronic service tool to check Idle Shutdown and PTO parameters.

Fuel level is low in the tank

Fill the supply tank. Refer to the OEM service manual.

Battery voltage is low

Check the batteries and the unswitched battery supply circuit. Refer to Procedure 019-087 (Unswitched Battery Supply Circuit) in Section 19 in the Troubleshooting and Repair Manual, CM870 Electronic Control System, Signature and ISX Engines, Bulletin 4021334.
Also, refer to Procedure 019-087 (Unswitched Battery Supply Circuit) in Section 19 in the Troubleshooting and Repair Manual, Electronic Control System, Signature, ISX and QSX Engines, Bulletin 3666259.
Also, refer to Procedure 019-087 (Unswitched Battery Supply Circuit) in Section 19 in the Troubleshooting and Repair Manual, Power Generation Control Systems QSX15, QSK23, QSK45, QSK60, QSK78, and QST30 Series Engines, Bulletin 4021419.

Fuel inlet restriction

Check for fuel inlet restriction. Refer to Procedure 006-020 (Fuel Inlet Restriction) in Section 6.

Air in fuel system

Bleed the fuel system and correct source of the leak. Refer to Procedure 006-003 (Air in Fuel) in Section 6.

Keyswitch circuit is malfunctioning

Check the vehicle keyswitch circuit. Refer to Procedure 019-064 (Key Switch Battery Supply Circuit) in Section 19 in the Troubleshooting and Repair Manual, CM870 Electronic Control System, Signature and ISX Engines, Bulletin 4021334.
Also, refer to Procedure 019-064 (Key Switch Battery Supply Circuit) in Section 19 in the Troubleshooting and Repair Manual, Electronic Control System, Signature, ISX and QSX Engines, Bulletin 3666259, for fault code troubleshooting.

Fuel shutoff valve(s) closed (electronically controlled injection)

Check the fuel shutoff valve and circuit. Refer to Procedures 019-049 (Fuel Shutoff Valve Circuit) in Section 19
and 019-050 (Fuel Shutoff Valve Solenoid) in Section 19 in the Troubleshooting and Repair Manual, CM870 Electronic Control System, Signature and ISX Engines, Bulletin 4021334.
Also, refer to Procedure 019-049 (Fuel Shutoff Valve Circuit) in Section 19.
Also, refer to Procedure 019-050 (Fuel Shutoff Valve Solenoid) in Section 19 in the Troubleshooting and Repair Manual, Electronic Control System, Signature, ISX and QSX Engines, Bulletin 3666259.
Also, refer to Procedure 019-049 in the Troubleshooting and Repair Manual, Power Generation Control Systems QSX15, QSK23, QSK45, QSK60, QSK78, and QST30 Series Engines, Bulletin 4021419, for fault code troubleshooting.
Also, refer to Procedure 019-050 in the Troubleshooting and Repair Manual, Power Generation Control Systems QSX15, QSK23, QSK45, QSK60, QSK78, and QST30 Series Engines, Bulletin 4021419, for fault code troubleshooting.

Fuel grade is not correct for the application or the fuel quality is poor

Operate the engine from a tank of high-quality fuel. Refer to Fuel Recommendations and Specifications in the Operation and Maintenance Manual, Signature and ISX Engines, Bulletin 3666251.
Also, refer to Fuel Recommendations and Specifications in the Operation and Maintenance Manual, Industrial and Power Generation, QSX15 Engines, Bulletin 3666423.

Vehicle parasitics are excessive

Check for transmission malfunctioning, cooling fan operation cycle time, and engine-driven units. Refer to the OEM service manual.