1. Thank you for visiting HeavyEquipmentForums.com! Our objective is to provide industry professionals a place to gather to exchange questions, answers and ideas. We welcome you to register using the "Register" icon at the top of the page. We'd appreciate any help you can offer in spreading the word of our new site. The more members that join, the bigger resource for all to enjoy. Thank you!
  2. ALL NEW MEMBERS READ THIS FIRST!! Thank you for joining Heavy Equipment Forums! If you are new to forums we communicate with "Threads", please search our threads to see if your topic may have already been answered and if not then click "Post New Thread" in the appropriate forum. This will allow all of our members to see your question and give you the best chance to be answered. After you've made a number of posts you will graduate to Full Member status where you'll see a few more privileges. Following these guidelines will help make this the best resource for heavy equipment on the net. Thanks for joining us and I hope you enjoy your stay!!

Komatsu D61-23 CA2554 fault code

Discussion in 'Dozers' started by Jam, Jan 13, 2021.

  1. Jam

    Jam Well-Known Member

    Nov 11, 2009
    Building contractor
    Cork, Ireland
    A small bit of information for anyone with this fault code. There is a pipe coming from the exhaust manifold going to a pressure sensor at the front of the valve cover. This pipe chokes with soot, blocking the supply and generates this Lo3 code. Disassemble everything and clean out the parts. Reassemble and run the machine for a few minutes Turn ofF the key for 30sec and the code should be cleared on startup 0B3BD3F3-B469-41E8-90B9-3A339281A3A1.jpeg E1B2F356-B604-47EC-BDDF-A8D66D60409D.jpeg 6EB0D4CC-3BC4-4A37-867D-78137673C7D3.jpeg B73B4497-08C2-4FE0-87EF-D386276ECDF3.jpeg