PO401 EGR flow fault

Discussion in 'General Motoring' started by Michael Frohlich, Sep 18, 2006.

  1. Michael Frohlich

    Michael Frohlich Guest

    What's the best way and or cheapest way to fix my 1997 Honda Accord EX v6
    PO401 EGR flow fault? Can the EGR valve be cleaned instead of replaced or
    could a vacuum leak cause the fault?
     
    Michael Frohlich, Sep 18, 2006
    #1
  2. Michael Frohlich

    Doug B Guest

    My '98 Odyssey (VTEC 4) is showing the same code.
     
    Doug B, Sep 18, 2006
    #2
  3. Michael Frohlich

    TE Chea Guest

    | Can the EGR valve be cleaned instead of replaced or
    | could a vacuum leak cause the fault?

    www.autozone.com/servlet/UiBroker?UseCase=RG001&UserAction=beginRepairGuide
     
    TE Chea, Sep 25, 2006
    #3
  4. Michael Frohlich

    Doug B Guest

    Good idea, but no help if your Honda was made after 1995.
     
    Doug B, Sep 25, 2006
    #4
  5. Michael Frohlich

    hellranter Guest

    Most VTEC Hondas have trouble with blockage in the EGR supply pipe. This is
    usually caused by corrosion, and often times the pipe itself has to be
    replaced. It has nothing to do with the EGR valve...their failure rate is
    almost non-existent.

    J
     
    hellranter, Sep 26, 2006
    #5
  6. Michael Frohlich

    Doug B Guest

    Is cleaning or replacing the EGR supply pipe a DIY-able task?
     
    Doug B, Sep 26, 2006
    #6
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