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C15 acert Iva problem

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by kpennington1021, Mar 7, 2024.

  1. Mar 7, 2024 #1
    kpennington1021

    kpennington1021 Bobtail Member

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    Mar 7, 2024
    0
    I’ve got c15 acert that threw code 95 for iva system oil pressure voltage high, replaced the sensor and check engine light went away. Next morning about an hour down the road check engine light came back on and would turn on and off randomly, checked the codes and it showed iva #2 #4 and #6 not responding. Ran a iva actuation test and all solenoids were working. when the engine light is on it’s only giving about half power, was curious what direction I should troubleshoot next?

    note: the sensor I replaced wasn’t cat brand, it was PDI, connector seems a bit loose.

    Engine serial: MXS53135
     
    kpennington1021, Mar 7, 2024
    kpennington1021, Mar 7, 2024
    #1
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  3. Mar 8, 2024 #2
    Smellfunny

    Smellfunny Road Train Member

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    Jan 28, 2012
    South Carolina
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    I am not a fan of aftermarket sensors. I will use them in a pinch but not at all for oil pressure. I would check the harness real good and then a Cat sensor and then if code continues then you have to go to next step. Might be a bad o-ring or something loose.
     
    Smellfunny, Mar 8, 2024
    Smellfunny, Mar 8, 2024
    #2
  4. Mar 12, 2024 #3
    kpennington1021

    kpennington1021 Bobtail Member

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    Mar 7, 2024
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    Where are the o rings located in the Iva system, is there a diagram somewhere I can look up
     
    kpennington1021, Mar 12, 2024
    kpennington1021, Mar 12, 2024
    #3
  5. Mar 12, 2024 #4
    Smellfunny

    Smellfunny Road Train Member

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    Jan 28, 2012
    South Carolina
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    Adept Ape has the channel to watch on CATs. This video explains it all. Around 7 mins he explains about the bridges to IVA and the o-rings under them. They can also crack or come loose. But watch the whole video and like and subscribe. Cool guy. Great videos.
     
    Smellfunny, Mar 12, 2024
    Smellfunny, Mar 12, 2024
    #4
    Oxbow, Heritage1lw and Stay Puft Thank this.
  7. Apr 24, 2024 #5
    Allhookedup

    Allhookedup Bobtail Member

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    Apr 24, 2024
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    How brittle is your harness, those iva harnesses can cause lots of issues once they get oil in the wires and worn out. I myself don't fight iva issues anymore jmo. One less thing to go wrong
     
    Allhookedup, Apr 24, 2024
    Allhookedup, Apr 24, 2024
    #5
    Oxbow Thanks this.
  8. Oct 31, 2024 #6
    Imontoya

    Imontoya Bobtail Member

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    Mar 8, 2013
    0
    Yes replace the internal wire harness. It's not easy, I had a mechanic replace it and no more problems.
     
    Imontoya, Oct 31, 2024
    Imontoya, Oct 31, 2024
    #6
    Oxbow Thanks this.
  9. Nov 1, 2024 #7
    cc27866

    cc27866 Bobtail Member

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    Dec 18, 2022
    0
    I have this same dreded code 95, on my 06
    C15 acert. Is the sensor located on the driver side or the passenger side of the motor. Also one I change the sensor, will the check engine light go off, or will I have to go to a dealership?
     
    cc27866, Nov 1, 2024
    cc27866, Nov 1, 2024
    #7
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