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P0402 EGR ?2001 prius 1.5

Discussion in 'Generation 1 Prius Discussion' started by Kelly C, Feb 2, 2018.

  1. Kelly C

    Kelly C Junior Member

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    Vehicle:
    2001 Prius
    Model:
    ----USA----
    I have a 1 gen prius 2001 1.5l. Pops code P0402 every so often. Runs fine no other symptoms. Can't for the life of me figure it out. I can't find any info on an EGR valve on this little motor. Any ideas out there?
     
    #1 Kelly C, Feb 2, 2018
  2. sandy11246

    sandy11246 Member

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    Vehicle:
    2003 Prius
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    ----USA----
    That code does relate to EGR, but wondered if the DTC may have actually been P0420. I could not find any relation to a P0402 on a 2001 Prius. Just asking and trying to help. I have a 2001 Prius repair manual but no listing of a P0402 DTC. Weird.
     
    #2 sandy11246, Feb 28, 2018
  3. Kelly C

    Kelly C Junior Member

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    2001 Prius
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    ----USA----
    Yes I’m sure of the code and that’s the problem I’m having I cannot find it in the manual anywhere and I cannot locate an EGR valve on this vehicle
     
    #3 Kelly C, Feb 28, 2018
  4. sandy11246

    sandy11246 Member

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    What scanner was used to extract the code? Mini VC or other.
     
    #4 sandy11246, Feb 28, 2018
  5. ChapmanF

    ChapmanF Senior Member

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    No P0402 in the code list, and no EGR on the Gen 1 engine. Look as hard as you want. :)

    Funky code reader used to read the code? Engine ECU replaced with a wrong one?

    -Chap
     
    #5 ChapmanF, Feb 28, 2018
  6. sandy11246

    sandy11246 Member

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    2003 Prius
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    I agree Chap, that was exactly where I was going. I would have to be one of those two choices. If it appeared more than once, and it set an CEL I would consider the wrong ECM. If just a DTC w/o CEL, code reader is issue.
     
    #6 sandy11246, Mar 1, 2018
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