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Tomorrow is the big day to VGT turbo or not

Discussion in 'Freightliner Forum' started by Hulld, Apr 9, 2017.

Page 5 of 5
  1. Mar 27, 2020 #41
    Hulld

    Hulld Road Train Member

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    Oct 19, 2015
    Upstate NY
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    I think I am on to a cure for that god awful hissing at an idle that the ddec v engines have.
    It requires no programming.
    Been testing for a couple a weeks and it looks promising at this point.
     
    Hulld, Mar 27, 2020
    Hulld, Mar 27, 2020
    #41
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  3. Mar 28, 2020 #43
    truck 307

    truck 307 Light Load Member

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    Aug 11, 2014
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    Change out the barometric pressure sensor for a quick fix sensor. I paid just over $100. Tells your computer you are 3000 ft or higher above sea level, which shuts off the EGR as engine needs more pure air due to air being thinner at that altitude. Therefore, the vgt doesn't lock up to force exhaust gasses recirculated to the air intake manifold.
    You can easily build one also, but I was without the time needed ,so I simply ordered one and it installs in under 2 minutes
     
    truck 307, Mar 28, 2020
    truck 307, Mar 28, 2020
    #43
  4. Mar 28, 2020 #43
    Hulld

    Hulld Road Train Member

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    Oct 19, 2015
    Upstate NY
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    Yea tried that a long time ago....
    You still get the hiss..
    The way I’m doing it now the truck sounds like a non VGT turbo at idle but the second you take off to drive the VGT automatically turns on.
     
    Hulld, Mar 28, 2020
    Hulld, Mar 28, 2020
    #43
  6. Mar 30, 2020 #45
    truck 307

    truck 307 Light Load Member

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    Aug 11, 2014
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    The VGT will always turn on if not electronically bypassed or somewhat major rerouting of exhaust performed.
    It's the new thing. It creates bottom end boost ( lower RPM's) for more power.
    I have 2 colleges of mine who've had major alterations done, later getting caught, both lost their CVOR number and had $5500.00 fines to pay.
    I opted to leave mine as is
     
    truck 307, Mar 30, 2020
    truck 307, Mar 30, 2020
    #45
  8. Mar 30, 2020 #45
    Hulld

    Hulld Road Train Member

    2,882
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    Oct 19, 2015
    Upstate NY
    0
    The way I am doing it now the VGT works as factory programmed and designed the second the truck starts to roll but NO HISS AT IDLE.
    I have done this with no altering of any programming or electronically bypassing anything and absolutely no rerouting of the exhaust in any way.
    And if if for some unknown reason I wanted to listen to that god awful hiss at idle I can make it come back in under two seconds with never leaving the drivers seat.
     
    Hulld, Mar 30, 2020
    Hulld, Mar 30, 2020
    #45
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