Case IH F-519645-16 - ECU – Engine ECU: SCR Inducement: Level 1 (Torque reduction), triggered by EGR valve blocked fault.

The engine's Exhaust Gas Recirculation (EGR) valve is mechanically blocked, stuck, or failing to open/close properly. Because the EGR system is malfunctioning, the Selective Catalytic Reduction (SCR) emissions system triggers a Level 1 inducement, actively reducing engine torque to protect the engine.

• MAGNUM AFS Connect
• Farmall 85A
• Farmall 95A
• Farmall 105A
• Farmall 115A
• Farmall 85C
• Farmall 95C
• Farmall 105C
• Farmall 115C
• Farmall 95U
• Farmall 105U
• Farmall 115U
• Magnum
• Steiger
• TR270B Compact Track Loaders
• CX130B Excavator
• CX360B Excavator
• Dozers
• Wheel Loaders

1. 1

   Check the EGR valve for heavy carbon buildup or dirt on the valve seat (Visual & Mechanical Inspection)

2. 2

   Perform an actuation test to check if the EGR valve is sticking or completely blocked mechanically from opening/closing

3. 3

   Check the EGR valve position sensor to verify if the commanded position and actual measured position are mismatched

4. 4

   Verify the tightness of the EGR valve and its corresponding position

1. 1

   Access the EGR Valve

   Locate the EGR valve on the exhaust/intake manifold routing of the FPT engine.

2. 2

   Remove and Inspect

   Remove the EGR valve and inspect the valve seat and internal flap for carbon fouling.

3. 3

   Clean or Replace

   If the blockage is purely carbon buildup, cleaning the valve seat thoroughly may restore functionality. If the valve is mechanically bound, the internal motor is burnt out, or the position sensor is mismatched/failed, the entire EGR valve assembly must be replaced.

4. 4

   Reinstall

   Install the new or cleaned EGR valve using new gaskets to prevent exhaust leaks.

5. 5

   Clear Codes

   Use a diagnostic tool to clear the engine ECU fault codes. Once the ECU verifies that the EGR valve is functioning and flowing correctly, the SCR Level 1 Torque Reduction inducement will automatically deactivate.