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John Deere Skidder

Diesel Dave

Senior Member
Joined
Sep 29, 2022
Messages
2,022
Location
Ontario Canada
That sn # is confusing lol.
From what I see in parts , the machine has an engine oil pressure sensor not an oil pressure switch.
***Caution , The ECU pin out may not match the skidder***
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Diesel Dave

Senior Member
Joined
Sep 29, 2022
Messages
2,022
Location
Ontario Canada
Your skidder is actually a 540G-III correct ?
The info I gave in the previous post is based on the machine sn # to engine serial number reference from the Deere Power systems site .
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NKASTRILLO

Member
Joined
Mar 21, 2024
Messages
7
Location
ESPAÑA
El problema con el código de fallo esta resuelto. Muchas gracias por la información.
Surgió a partir de diagnosticar la máquina, ya que el problema que presenta es que el motor en marcha genera irregularidades en la inyección. Hemos sustituido el conector eléctrico de la ECU y el conector de la bomba inyectora, revisando la correcta continuidad del cableado. También mandamos la bomba inyectora para comprobar el regulador electrónico de inyección, este fue sustituido. Después de montar la bomba inyectora, el motor estuvo trabajando correctamente 10 minutos y volvió a mostrar irregularidades.
El sistema electrónico no detecta ningún fallo ahora, pero el motor sigue haciendo las irregularidades en la inyección. Hemos intercambiado los inyectores para descartar cualquier problema en estos y verificar así que los inyectores funcionan correctamente.
No tengo claro como descartar fallo en la ECU..
 

Diesel Dave

Senior Member
Joined
Sep 29, 2022
Messages
2,022
Location
Ontario Canada
HEF rule’s specify all posts are to be in English. Using google translate will help the situation.
With intermittent ECU issues I have seen ECU mounting hardware and uneven mounting brackets twisting the controller . Maybe try loosening the ECU mounting hardware temporarily.
 

NKASTRILLO

Member
Joined
Mar 21, 2024
Messages
7
Location
ESPAÑA
The problem with the fault code has been resolved. Thank you very much for the information.

It arose from diagnosing the machine, since the problem it presents is that the engine running generates irregularities in the injection. We have replaced the electrical connector of the ECU and the connector of the injection pump, checking the correct continuity of the wiring. We also sent the injection pump to check the electronic injection regulator, it was replaced. After mounting the injection pump, the engine was working properly for 10 minutes and showed irregularities again.

The electronic system does not detect any failure now, but the engine continues to make the irregularities in the injection. We have exchanged the injectors to rule out any problems in these and verify that the injectors are working properly.

I'm not sure how to rule out a failure in the ECU.
 
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