Case IH 3356 – Engine Control Unit (ECU) / Electronic Diesel Control (EDC): Cylinder Shutoff (Cylinder Balancing Disabled) - Shutoff Active

The engine control module has actively disabled the cylinder balancing function and shut off a specific cylinder. This is typically a protective reaction to a severe fuel system issue, such as a misfire, excessive fuel leakage, or an injector failure.

• Case IH Magnum 235 – 340 (Series 4)

1. 1

   Check for fuel inlet or return restriction

2. 2

   Check for air ingress into the fuel supply

3. 3

   Check the fuel delivery performance of the gear supply (lift) pump

4. 4

   Check the pressure control of the high-pressure pump inlet regulator

5. 5

   Check the fuel supply pressure to the high-pressure pump

6. 6

   Check the fuel leakage rate from electronically controlled injectors

7. 7

   Isolate the cause of excessive fuel leakage from the injectors

8. 8

   Provide an alternate fuel supply to diagnose potential fuel inlet problems

1. 1

   Diagnose fuel injection system

   Diagnose the fuel injection system components (low and high-pressure pumps, rail pressure sensor, and injectors) to isolate the root cause of the cylinder shutoff.

2. 2

   Replace faulty component

   Replace the faulty component (such as a leaking or failed injector) identified through the leakage and pressure tests.