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Recent content by Moh_SH

  1. M

    John Deere 7930

    Diesel Dave, thank you so much for the technical support
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    John Deere 7930

    So, does the MAP sensor with part number RE522723 have a pressure range of 0 to 5 bar?
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    John Deere 7930

    After troubleshooting, it was determined that the MAP pressure sensor is damaged and does not send any data to the ECU. Since I do not have access to the required part, I would like to use another MAP pressure sensor whose resistance value is within the range suitable for this engine, and...
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    John Deere 7930

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  5. M

    John Deere 7930

    Hi everyone, I have a question about a John Deere 7930 tractor. Does anyone know the correct resistance reading in ohms for the engine air pressure sensor? If possible, please share the sensor test values or the related service manual specifications. Thanks in advance for your help.
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    John Deere 7810 tractor

    Hello, I’m repairing a John Deere 7810 tractor ECU and need the electrical schematic or wiring diagram of the engine control board — especially the connector pin assignments and signal names. Could you please share or point me to the correct service documentation? Thank you!
  7. M

    PCU error code 8300 john deere

    Hi, It is my pleasure to be in touch with you. I have a question. I needed the IC EEPROM program for the PCU board of the John Deere 8300 tractor, so I took the EEPROM from a healthy PCU and after copying the EEPROM program, I installed it on the PCU. After installing , the device gave error...
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    140H transmission ECU test

    Hi guys, I tested ECM according to your guidance, then i installed on the machine and tested it in both cases ECM worked properly. After a few days, gears 5, 6, 7 and 8 forward and 5 and 6 backward do not work. Considering the arrangement of solenoid, could ECM be the problem?
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    140H transmission ECU test

    Thank you for your complete explanation.
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    140H transmission ECU test

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    140H transmission ECU test

    The machine is too far away from me. Before installing the ecm, I want to test it. According to a video on YouTube, the inside of the shifter consists of switches and a selector that provides the digital signal.
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    140H transmission ECU test

    Thank you very much for the information you sent me. For example, for the First forward, a negative signal is sent from the gear shifter to the pin the first and forward. is it correct?
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    140H transmission ECU test

  14. M

    140H transmission ECU test

    Serial number is 172-9389.
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    140H transmission ECU test

    Hi, I have a request. I repaired a grader caterpillar 140H transmission electronic board and want to test it, If possible, guide me on how to simulate the gear shifter switch and the voltage applied to the pins of electronic board in different gears, also I want Arrangement of energizing the...
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