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331g

  1. E

    Deere 331g Def Issues

    Deere 331g Pin# 1T0331GKPHF311886. Engine is in derate after a def system issue warning and countdown. Only active codes i have are DCU 523636, DCU 3516. I drained tank and the fluid looks fine. I changed the dosing filter and the old filter looked fine. I am leaning towards the header unit but...
  2. J

    331G electric issues causing def fault code

    Good morning, I’ve got a John Deer 331G skid steer. It’s throwing 5 different fault codes. It’s also saying “Def fault code, power and speed is decreased” two days ago it worked just fine. I cleaned both ground contacts by the fuse boxes. Any other ideas? It seems like it may be a ground issue...
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