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Thread: Pulsewidth not following BLM? 93 LT1

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  1. #1
    Carb and Points!
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    Apr 2024
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    Pulsewidth not following BLM? 93 LT1

    Very short idle period, just long enough to get into closed loop for a minute or two. I noticed on the logs once in closed loop the Short Term BLMs are pinned at 192.
    Right bank Long Term BLM walks up to 158ish, pulsewidths go up from ~3.000ms to 3.600ms, and the short term stabilizes.
    On the left bank, however, Long Term BLM walks all the way to 160(max), short term stays at 192, and the pulsewidths hold ~3.000ms.
    When I saw both LT and ST left side BLMS pinned my first thought was exhaust leak, but after seeing the pulswidths not move at all I'm a bit stumped. Is there something I'm missing here? Shouldn't the pulsewidths on both sides follow their respective LT BLMs? Screencap of going into closed loop below. I can add the DataCat file/CSV if needed.
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  2. #2
    Carb and Points!
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    Apr 2024
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    Edit, Disregard, I read the logs wrong. Right pulswidth was stable, left was hunting.

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