Deere D323 derating issue

Discussion in 'Heavy Equipment & Pavement' started by Wisentaner, Oct 13, 2013.

  1. Wisentaner

    Wisentaner LawnSite Member
    Messages: 40

    I have a deere 323D that keeps derating. I have changed both fuel filters but after 20 hrs i starts to derate again. It codes 94.18 and 1569.31. Any one else had this problem. Tank is clean don't know what else to do
  2. SVA_Concrete

    SVA_Concrete LawnSite Senior Member
    Messages: 467

    If your fuel filter change fixes the issue, and you are using an aux fuel tank to fill the machine. I would clean your tanks.

    I got some water in my aux tank and caused some algae growth in the fuel. Same issue It would plug up tje filters very frequently. I put some of that magic elixr from jd in all the tanks and have not had the issue since
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  3. treemover

    treemover LawnSite Senior Member
    Messages: 427

    you change or clean the air filter?

    JDSKIDSTEER LawnSite Bronze Member
    Messages: 1,164

    More than likley bad fuel in the tank...Drives me crazy.
  5. Wisentaner

    Wisentaner LawnSite Member
    Messages: 40

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  6. Wisentaner

    Wisentaner LawnSite Member
    Messages: 40

    Found it was a bad fuel pressure sensor
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