ECU 000656.02 – Cylinder No. 6 Electronic Injector Part Number Invalid. John Deere System Advisory.

ECU 000656.02 (ECU 656.02)

Code: 000656.02

Shortcode: 656.02

Description:

Error code ECU 000656.02 is triggered when the ECU detects that the part number of the injector installed or calibrated in cylinder no. 6 is incorrect. This can lead to improper fuel delivery, misfires, reduced engine efficiency, and potential damage to the engine due to mismatched injector characteristics.

Reaction:

The ECU may adjust engine parameters or limit performance to prevent potential damage resulting from incorrect injector calibration.

Recommendations:

  • Verify Injector Part Number: Check the part number of the injector installed in cylinder no. 6 against the manufacturer’s specifications to ensure it is the correct part for the engine.
  • Recalibrate Injector if Necessary: If the part number is correct but the issue persists, recalibrate the injector using the correct part number data to ensure proper operation.
  • Replace Incorrect Injector: If the injector part number is found to be incorrect, replace it with the correct one specified for cylinder no. 6.
  • Reset ECU and Verify Operation: After making the necessary corrections, reset the ECU to clear the error code and verify that the injector operates correctly. Conduct engine performance tests to ensure the problem is resolved.

Note:

Using the correct injector part number and ensuring accurate calibration are crucial for maintaining optimal engine performance, fuel efficiency, and preventing engine damage. Regular checks and adherence to manufacturer specifications can help prevent such issues.


Control Units: John Deere

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