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P0343 Code, rough idle, inconsistent start

Discussion in '2nd Gen. Tacomas (2005-2015)' started by zh137dz, Mar 14, 2019.

  1. Mar 14, 2019 at 11:10 AM
    #1
    zh137dz

    zh137dz [OP] Well-Known Member

    Joined:
    Nov 3, 2016
    Member:
    #201424
    Messages:
    318
    Gender:
    Male
    Nashville, TN
    Vehicle:
    2012 Tacoma Prerunner TRD Sport
    too many lights
    Scangauge is pulling up P0343 as a TC and P0340 as a PTC on my 2012 Tacoma Prerunner v6. Haynes shows how to replace it all and I'm good on replacing the sensor, just wondering if this seems normal for a 2012 under 70k miles (I put on about 8k/year).

    Wife's car was having some issues the other day and died and struggled to start then had a rough idle for about 4 miles on the way home. She was around 1/4 tank or so and I assumed bad/watered gas since we've gotten a ton of rain in Nashville. Ran a bottle of Heet and a full tank in her car and no issues.

    Truck is around 1/4 tank and wondering if I'm experiencing the same fuel issues. I put in a bottle of Heet and am going to fill it up unless anyone objects to driving it in this position. If it hits limp-mode (not sure why it would for CMP) I'm only .5 miles from a gas station. I will also be checking and gapping the plugs if needed since I'm on vacation and can tinker at home in the garage.
     
  2. Mar 14, 2019 at 11:20 AM
    #2
    desertrunner24

    desertrunner24 Well-Known Member

    Joined:
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    Fresno , CA
    Vehicle:
    2011 TRD offroad 4x4
    Some
    Check to make sure no critters have chewed through the wires.
     
  3. Mar 14, 2019 at 3:04 PM
    #3
    zh137dz

    zh137dz [OP] Well-Known Member

    Joined:
    Nov 3, 2016
    Member:
    #201424
    Messages:
    318
    Gender:
    Male
    Nashville, TN
    Vehicle:
    2012 Tacoma Prerunner TRD Sport
    too many lights
    First thing on my list to check for, and look what I found!

    15526010168334814219683169600409.jpg
     
  4. Mar 14, 2019 at 3:21 PM
    #4
    desertrunner24

    desertrunner24 Well-Known Member

    Joined:
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    Member:
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    Messages:
    3,931
    Gender:
    Male
    First Name:
    Jake
    Fresno , CA
    Vehicle:
    2011 TRD offroad 4x4
    Some
    Pesky varmints images.jpeg-2.jpg
     
    zh137dz [OP] and ImMrCrash like this.
  5. Mar 14, 2019 at 3:29 PM
    #5
    zh137dz

    zh137dz [OP] Well-Known Member

    Joined:
    Nov 3, 2016
    Member:
    #201424
    Messages:
    318
    Gender:
    Male
    Nashville, TN
    Vehicle:
    2012 Tacoma Prerunner TRD Sport
    too many lights
    :rofl:

    I'm guessing it's an easy fix since it's just wiring. Trying to remove the three wires from the existing 12353 connector and wire in new heads. Damn sonofabitch bastards chew so close to the connector I don't know I can get it out.
     
    desertrunner24 likes this.
  6. Mar 18, 2019 at 7:42 AM
    #6
    zh137dz

    zh137dz [OP] Well-Known Member

    Joined:
    Nov 3, 2016
    Member:
    #201424
    Messages:
    318
    Gender:
    Male
    Nashville, TN
    Vehicle:
    2012 Tacoma Prerunner TRD Sport
    too many lights
    For the future person Googling this trouble code: something chewed through one of the three wires going to this VVT sensor in my V6 Tacoma. Bought a pigtail harness for a Scion to wire in and replace. I believe it is a Delphi sensor and the connector part number shows 12353. Amazon said it wasn't a fit for my truck but it fits. https://www.amazon.com/gp/product/B07681CBFC/ref=ppx_yo_dt_b_asin_title_o02_s01?ie=UTF8&psc=1

    Hope this helps your resolution! Nothing worse than Googling an issue, finding a forum thread, and someone saying they will report back and it's been seven years.
     
  7. Dec 1, 2019 at 8:34 AM
    #7
    dxtremz

    dxtremz New Member

    Joined:
    Feb 17, 2014
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    #123331
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    I appreciate you posting pics and the replacement part. I had the exact same problem when I woke up this morning and this post was the only real result. I've ordered the harness from Amazon. Let's hope it works. Curious that something chewed the exact same wire on mine...
    [​IMG]
     
    Last edited: Dec 1, 2019
    BassAckwards and DG92071 like this.

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