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Thread: gen 3 silverado dips in spark

  1. #1
    Tuner in Training
    Join Date
    Feb 2021
    Posts
    11

    gen 3 silverado dips in spark

    Its always been an issue but it has been getting more noticeable now at normal driving and hard pulls and reverse. It feels like its pulling timing or a cut in fuel all through out the rpms range and in idle and low speeds. I have good fuel pressure at 62psi even when the stutters are felt. I logged it while reversing and on drive with my foot on the break, since i was in my garage, but it does the same thing while driving normal. The spark dips down to around 11 when ever it stutters. I still havent heard back from my tuner. Is there anything to check? Im attaching my log and tune file, i need some pointers thanks, added a video as well https://streamable.com/r39ai8
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