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DIY HCAC bypass valve P1436 code

Discussion in 'Generation 1 Prius Discussion' started by h3hybrids, Nov 22, 2010.

  1. h3hybrids

    h3hybrids New Member

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    Nov 13, 2010
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    Location:
    Philadelphia, PA
    Vehicle:
    2001 Prius
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    Anybody figure out how to fix the HCAC bypass valve P1436 code?

    US TSB EG015-02
    Aug. 2, 2003, M.I.L. "ON" P1436-HCAC Bypass Valve Improvement, 2001-2002 Prius.
    (road salt may cause issues with valve. possible fix is to replace the Front Exhaust Pipe Assembly if any shaft binding is evident.)
     
    #1 h3hybrids, Nov 22, 2010
  2. Patrick Wong

    Patrick Wong DIY Enthusiast

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    Green Valley, AZ
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    2015 Prius
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    Two
    1. Apply high temp lube to the valve's shaft. The part gets quite hot so the lube may burn off after a while.

    2. Replace the catalytic converter (incl the HCAC chamber) with a new part.
     
    #2 Patrick Wong, Nov 22, 2010
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