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Unplug egr after egr delete?

Discussion in 'Trucks [ Eighteen Wheelers ]' started by rrw811, Sep 1, 2012.

  1. Sep 1, 2012 #1
    rrw811

    rrw811 Light Load Member

    82
    26
    Dec 14, 2011
    WI
    0
    Hi, I had my 2005 isx egr deleted by the pdi dealer,diesel spec, in Montreal. That was 60k miles, today, all of a sudden it blew the egr hose off that goes into the intake(which is blocked off), I didn't think there should have been any exhaust gas getting passed the valve. I shut the truck off, turned the key on, unplugged the power going to the egr valve, started it up, no more leak. So why was the valve opening after having it deleted? Now with it unplugged im getting the same top end boost, but running down the road its around 14psi instead of about 28-30 which is where it was before unplugging it. Is the valve suppose to be unplugged after getting the egr deleted? Thanks!

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    rrw811, Sep 1, 2012
    rrw811, Sep 1, 2012
    #1
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  3. Sep 1, 2012 #2
    VisionLogistics

    VisionLogistics Road Train Member

    1,551
    978
    Dec 8, 2011
    Jellystone
    0
    I would think that having been deleted from the ECM program that the EGR should have been non-functional, so it's interesting that it was still being charged. I unplugged mine in the closed position, maybe try that? If you leave the truck off for a few hours to cool down, with the EGR plugged in, the valve will close by itself. Then turn the key on, but don't start the truck. That will close it (on a cold engine) if it didn't already. Then go and unplug it in the closed position. Normally that will cause a Check Engine Light to come on, but if they deleted it in your ECM that shouldn't occur. I'd be calling the dealer and asking some questions since I don't think the EGR should have been active if they deleted it correctly. Good luck.

    EDIT: I see that you already did the disconnect. Sorry, I was in a hurry to answer.
     
    VisionLogistics, Sep 1, 2012
    VisionLogistics, Sep 1, 2012
    #2
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