1. Greenteapri

    Greenteapri Active Member

    Joined:
    Nov 19, 2018
    328
    383
    0
    Location:
    Cypress
    Vehicle:
    2013 Prius
    Model:
    Three
    After my successful rear shock replacement, I threw some ominous codes. Dr. Came back with a P0301. Wth. Cleared and ran some errands. While out, at idle, she was doing the Texas Rattlesnake under the hood. Drove home with my seat and face as close to the dash like the gf; heard a few more rattles mostly at lower speeds with ICE on. Threw another code, this time P0303.

    Pulled the plugs.
    Screenshot_20211205-141749_Gallery.jpg
    Screenshot_20211205-141741_Gallery.jpg
    Screenshot_20211205-141705_Gallery.jpg Screenshot_20211205-141615_Gallery.jpg

    Left: ~20k
    Right: ~98k

    Reinstalled the old plugs. So far, no codes or rattlesnakes under the hood.
     
  2. JC91006

    JC91006 Senior Member

    Joined:
    Nov 10, 2013
    15,105
    7,749
    0
    Location:
    Los Angeles, CA
    Vehicle:
    2010 Prius
    Model:
    V
    I don't get it. You must have missed some details. You replaced shocks, and you got a misfire. but then you reinstalled old plugs??? from?
     
  3. ASRDogman

    ASRDogman Senior Member

    Joined:
    May 29, 2018
    3,805
    2,267
    0
    Location:
    Florida
    Vehicle:
    2010 Prius
    Model:
    Two
    I hope you cleaned the plugs before re-installing them?
    They don't look good though. Where are you getting your fuel?
     
    Greenteapri likes this.
  4. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    95,257
    43,193
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    you replaced the shocks and got a code? (n)
     
  5. Greenteapri

    Greenteapri Active Member

    Joined:
    Nov 19, 2018
    328
    383
    0
    Location:
    Cypress
    Vehicle:
    2013 Prius
    Model:
    Three
    Two separate events happening simultaneously.

    Fixed one problem and another popped up.

    Yes, they were cleaned. I use Chevron 99.9%.

    Yes, weird. o_O
     
  6. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    95,257
    43,193
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    perhaps the new(er) plugs are counterfeits
     
  7. mr_guy_mann

    mr_guy_mann Senior Member

    Joined:
    Sep 3, 2020
    1,195
    492
    0
    Location:
    NJ-USA
    Vehicle:
    2006 Prius
    Model:
    Four
    The plug on the left has a lot more deposits on it (some oil on the center insulator?) The center electrode also has noticably more wear. If it's 20k on it, I'm thinking counterfeit. Where did you purchase them?

    Posted via the PriusChat mobile app.
     
    Greenteapri likes this.
  8. rjparker

    rjparker Senior Member

    Joined:
    Jun 6, 2008
    4,189
    2,232
    2
    Location:
    Texas Hill Country
    Vehicle:
    2012 Prius v wagon
    Model:
    Three
    I call this a "Shock and Awe" video. Texas Rattlesnakes don't shake as much but it is certainly an interesting analogy.
     
    Greenteapri and tweedle99 like this.
  9. Leadfoot J. McCoalroller

    Leadfoot J. McCoalroller Senior Member

    Joined:
    May 12, 2018
    4,452
    4,395
    1
    Location:
    Pennsylvania
    Vehicle:
    2018 Prius c
    Model:
    Two
  10. Greenteapri

    Greenteapri Active Member

    Joined:
    Nov 19, 2018
    328
    383
    0
    Location:
    Cypress
    Vehicle:
    2013 Prius
    Model:
    Three
    At a Toyota dealership. My money is on counterfeit.

    Lots of fakes out here.

    Picked up some new plugs today.
    20211206_185525.jpg

    Packaging (two years apart)

    20211206_185817.jpg

    New/Old vs. New New
     
    ASRDogman likes this.
  11. Greenteapri

    Greenteapri Active Member

    Joined:
    Nov 19, 2018
    328
    383
    0
    Location:
    Cypress
    Vehicle:
    2013 Prius
    Model:
    Three
    *Update*

    No CEL's or rattlesnakes with the old sparkies.

    2+ MPG boost.
     
  12. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    95,257
    43,193
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    i haven't read of any counterfeits from dealerships, they have a tighter supply chain. but anything is possible
     
  13. Greenteapri

    Greenteapri Active Member

    Joined:
    Nov 19, 2018
    328
    383
    0
    Location:
    Cypress
    Vehicle:
    2013 Prius
    Model:
    Three
    **Update**

    3+ MPG Boost.

    No rattlesnakes or CEL's.
     
  14. OptimusPriustus

    Joined:
    Jul 31, 2021
    101
    40
    1
    Location:
    Finland
    Vehicle:
    2010 Prius
    Model:
    N/A
    Well possible. Has happened even in medicine industry. Unfortunately we gonna see more and more of this. Risk vs. reward way too good.
     
    bisco likes this.