Truckers Report Jobs

Find Trucking Jobs

Company Driver Company Driver Dry Van Dry Van Flatbed Flatbed Refrigerated Refrigerated Specialized Specialized Owner Operator Owner Operator
More Trucking Job Searches ⌄ Fewer Trucking Job Searches
⌃

Pete 579 outlet nox sensor fuse location

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Oilfield trash 1968, May 14, 2023.

  1. May 14, 2023 #1
    Oilfield trash 1968

    Oilfield trash 1968 Bobtail Member

    6
    3
    May 14, 2023
    0
    I have changed the sensor and light is still on. Cummins insight program won't reset fault.
     
    Oilfield trash 1968, May 14, 2023
    Oilfield trash 1968, May 14, 2023
    #1
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  3. May 14, 2023 #2
    Tropsnart

    Tropsnart Road Train Member

    1,129
    2,382
    Jun 8, 2015
    Pavilion New York
    0
    Not a mechanic, but I've heard you need to clean the holes in the little opening that the sensor sits in. If they are still plugged with soot the new sensor won't give accurate readings.
     
    Tropsnart, May 14, 2023
    Tropsnart, May 14, 2023
    #2
  4. May 14, 2023 #3
    JB7

    JB7 Medium Load Member

    688
    1,020
    Dec 13, 2022
    Laurel, MD
    0
    Why was the sensor replaced? Did you/ do you have any codes? If so, what codes do you have.
     
    JB7, May 14, 2023
    JB7, May 14, 2023
    #3
  5. May 14, 2023 #4
    Oilfield trash 1968

    Oilfield trash 1968 Bobtail Member

    6
    3
    May 14, 2023
    0
    It was showing reading below normal are shorted to low. Code 4154 active. This will eventually put me in the 5 mph derate mode. I have the cummins insight so i can get past that but i need this fixed before it causes other problems.
     
    Oilfield trash 1968, May 14, 2023
    Oilfield trash 1968, May 14, 2023
    #4
  7. May 14, 2023 #5
    JB7

    JB7 Medium Load Member

    688
    1,020
    Dec 13, 2022
    Laurel, MD
    0
    upload_2023-5-14_23-34-22.png
    The Diesel Particulate Filter (DPF) captures and burns off soot. The Selective Catalytic Reduction (SCR, similar to a catalytic converter in a car) along with the DEF system reduces NOx. Wondering if you replaced the correct sensor.
    upload_2023-5-14_23-52-9.png
    [​IMG]
     
    Last edited: May 14, 2023
    JB7, May 14, 2023
    JB7, May 14, 2023
    #5
  8. May 16, 2023 #6
    Oilfield trash 1968

    Oilfield trash 1968 Bobtail Member

    6
    3
    May 14, 2023
    0
    I fixed it. I ended up having to change the Ammonia sensor as well. Its control module sends heat to the NOx sensor heating it up when the engine starts.
     
    Oilfield trash 1968, May 16, 2023
    Oilfield trash 1968, May 16, 2023
    #6
    D.Tibbitt Thanks this.
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.