07 780 d13 regen soot level sensor

Discussion in 'Volvo Forum' started by justsomeguy, Jul 10, 2015.

  1. Jul 10, 2015 #1
    justsomeguy

    justsomeguy Bobtail Member

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    Owner removed regen canister and is running straight pipe, which initially worked fine, but now the truck is reporting soot level critically high and has derated massively. Does anyone know what sensor is causing the problem or how to trick this into going away? Which sensor senses the soot level?
     
    justsomeguy, Jul 10, 2015
    justsomeguy, Jul 10, 2015
    #1
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  3. Jul 11, 2015 #2
    nasriza

    nasriza Road Train Member

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    you're supposed to have a Differential pressure sensor on the dpf housing being that is all removed i don't know where it would be it has two little pipes coming out of it the only you could possibly trick is put new sensor in and do not put the pipes back so it can just read the same pressure on both ports
     
    nasriza, Jul 11, 2015
    nasriza, Jul 11, 2015
    #2
    justsomeguy Thanks this.
  4. Jul 11, 2015 #3
    justsomeguy

    justsomeguy Bobtail Member

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    He's going to try this by having two ports welded into a section of pipe with a restriction of some kind in between them so the 'upstream' sensor would read a higher pressure, simulating the canister. This is the closest thing we can think of that might work. I'm worried the ECU will still flag the readings as untrusted, but it's the best he's got at he moment.
     
    justsomeguy, Jul 11, 2015
    justsomeguy, Jul 11, 2015
    #3
  5. Jul 12, 2015 #4
    flood

    flood Road Train Member

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    sorry but it's my understanding that the D13 didn't come out until 2008.... my 2007 had the D12 non regen
     
    flood, Jul 12, 2015
    flood, Jul 12, 2015
    #4
  7. Jul 12, 2015 #5
    justsomeguy

    justsomeguy Bobtail Member

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    I get 08/07 mixed up all the time - not my truck. You're probably right that it didn't come out until 2008 and it's probably an 08. It's definitely a d13.
     
    justsomeguy, Jul 12, 2015
    justsomeguy, Jul 12, 2015
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  8. Jul 12, 2015 #6
    Johny41

    Johny41 Road Train Member

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    I purchased my truck ,Volvo 780 model 2008 in .... June 2007; they always launch the next year model 6-7 months earlier ; dealers already have the 2016 models; I read about some 2008 models built without DPF but D16 motors;
     
    Johny41, Jul 12, 2015
    Johny41, Jul 12, 2015
    #6
    flood Thanks this.
  9. Jul 12, 2015 #7
    flood

    flood Road Train Member

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    i had a company truck 08 (built early 08) with the D12 no dpf AND a 08 (built mid 08) with the D13 with dpf
     
    flood, Jul 12, 2015
    flood, Jul 12, 2015
    #7
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