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Thread: Keep Getting code P0356 Ignition coil F

  1. #1
    Join Date
    Sep 2011
    Posts
    264

    Keep Getting code P0356 Ignition coil F

    Keep getting trouble code P0356 after swapping 4.8 ... anyone ran into this code... I tried changing out coil on # 6 cyl,,, still getting same issue

  2. #2
    Join Date
    Mar 2003
    Location
    San Antonio, TX
    Posts
    11,038
    funny, i just had the same issue on that tahoe we did a conversion on, just two days ago.

    we swapped the coil and it fixed it. we did check continuity from the pcm to the coil and thru the coil harness.
    be sure ign and ground is at the coil as well.
    if none of those, possibly bad pcm driver.

  3. #3
    Join Date
    Sep 2011
    Posts
    264
    I checked all the continuity on wires,,, everything checked out.. I cleared codes and swapped the #2 and #6 coils... If the code appears again I am going to get another PCM...

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