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  1. O

    p1093

    ya sorry Mpa. last set of freeze frame data was desired of 120Mpa, actual 103Mpa, @ 2200 rpm. I ran a balance test 675 to 681 accross all 8 cyl. With the scanner on it no matter what i do they are about the same. But when i drive it, it could be half an hour or 5 min but it does it again...
  2. O

    p1093

    i have changed the fuel filter even though it was fairly new just to eliminate it as a possibility. CP3 and Injectors are original i did look at freeze frame data a while ago (this has been going on for awhile) the only thing i remember that didn't make sense to me was a desired rail fuel...
  3. O

    p1093

    05 2500HD LLY 170,000 miles keeps setting P1093 and going into limp in mode. it has no trouble starting, no excessive smoke , and until the code sets runs great. my understanding is that P1093 is low rail fuel pressure under enrichment, but it seems to set when i lift throttle ,and at low...
  4. O

    LLY: smell, smoke hard throttle

    oh ya still haven't found a resilution to the tip in throttle hesitation, if anyone has any ideas.
  5. O

    LLY: smell, smoke hard throttle

    an update; found a great thread about the proper way to check balance rates in this forum, so when i went to check it i found the engine never got above 150 deg. so 2 thermostats later the smoke and stink are gone. thanks for the info P.S. 2 injectors borderline
  6. O

    LLY: smell, smoke hard throttle

    is there a way to test injectors other than cyl balance? Jon
  7. O

    LLY: smell, smoke hard throttle

    newbie hear just got my first duramax, 05 LLY. runs great with a couple of exception, and looking for some insight. 1. on light throttle, like maneuvering in a parking lot or trying to inch into traffic, it hesitates and just doesn't seem to want to go until you give it a little more...
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