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PO340 code From a Different Angle

Discussion in 'Electrical' started by Jrgabriel, Nov 17, 2019.

  1. Nov 17, 2019 at 4:01 PM
    #1
    Jrgabriel

    #1
    Jrgabriel [OP] Well-Known Member

    Joined:
    Jul 14, 2019
    Member:
    #3519
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    199
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    Male
    Vehicle:
    2011 Jeep Grand Cherokee 2wd 5.7 Hemi
    So the initial code was a P0339 and crankshaft sensor replaced several times - will work for apx. 200 miles and then fails again and engine light comes on.

    Here is my question - alternator and PCM were replaced about a month before I purchased the car used because of a battery light and airbag light that came on. The car had no issues before this. My contention is - something with this change in the PCM and Alternator is causing the P0340 P0339 code to keep going off and making the car run rough, stall, no start.

    Even after a sensor change and 2nd PCM something is wrong. Help? I may have been just stating the P0339 code in my other posts but the paper is showing a p0340 code.
     
    Jrgabriel, Nov 17, 2019
    #1
  2. Nov 17, 2019 at 4:03 PM
    #2
    Jrgabriel

    #2
    Jrgabriel [OP] Well-Known Member

    Joined:
    Jul 14, 2019
    Member:
    #3519
    Messages:
    199
    Gender:
    Male
    Vehicle:
    2011 Jeep Grand Cherokee 2wd 5.7 Hemi
    Paperwork says only p0340 code.

    A8F5B90C-E190-463E-A8FA-DAAE4C8BC097.jpg
     
    Jrgabriel, Nov 17, 2019
    #2
  3. Nov 17, 2019 at 4:04 PM
    #3
    Jrgabriel

    #3
    Jrgabriel [OP] Well-Known Member

    Joined:
    Jul 14, 2019
    Member:
    #3519
    Messages:
    199
    Gender:
    Male
    Vehicle:
    2011 Jeep Grand Cherokee 2wd 5.7 Hemi
    424ED199-E977-411B-9B0A-F26F7D607FF9.jpg
     
    Jrgabriel, Nov 17, 2019
    #3
  4. Nov 17, 2019 at 4:07 PM
    #4
    Jrgabriel

    #4
    Jrgabriel [OP] Well-Known Member

    Joined:
    Jul 14, 2019
    Member:
    #3519
    Messages:
    199
    Gender:
    Male
    Vehicle:
    2011 Jeep Grand Cherokee 2wd 5.7 Hemi
    This was the first repair before I owned the car...when initial complaint was battery light and airbag light on (fix was alternator and pcm).

    6A474EDC-6B2F-4DA1-BCEE-DAC21E7F5B01.jpg
     
    Jrgabriel, Nov 17, 2019
    #4
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