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Thread: Reaching out for some help on tuning

  1. #21
    Joe (Moderator) joecar's Avatar
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    Lambda (or Lambda and EQR).

  2. #22
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    Any idea how to unlock the oem pcm to at least read the tune from it?
    I RATHER BE BLOWN & STROKED THAN SPRAYED

  3. #23
    Joe (Moderator) joecar's Avatar
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    Quote Originally Posted by ToXshoX View Post
    Any idea how to unlock the oem pcm to at least read the tune from it?
    I pm'd Paul for further advice.

  4. #24
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    Quote Originally Posted by joecar View Post
    I pm'd Paul for further advice.
    I was hoping to drive the car this weekend but maybe i shouldn't even though it seems to run fine and well i think it's a little on the lean side of things with that locked pcm it idles @ 15 air to fuel but seems to be a weak driving like 13.5-14 giving a pull I guess i dont know how much it could hurt it to drive it like that. Wideband is in the X on the exhaust system.

    I got my roadrunner running and connected but honestly I'm not good enough to get it up and running. Especially when i have nothing to start from. But a stock tune file i got online. I had a download of a modified tune awhile back i saved but it wouldn't keep the car running either. I'm pressed against time and it gets me frustrated.
    I RATHER BE BLOWN & STROKED THAN SPRAYED

  5. #25
    Joe (Moderator) joecar's Avatar
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    You can drive it, just don't push it hard.

    For the RR you need a tune file that you read out from your PCM (but your PCM is locked).

  6. #26
    Joe (Moderator) joecar's Avatar
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    To unlock, try this: connect V7 scantool to vehicle, go Flash->Read Calibration From PCM, checmark Try Alternate Keys.

  7. #27
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    Quote Originally Posted by joecar View Post
    You can drive it, just don't push it hard.

    For the RR you need a tune file that you read out from your PCM (but your PCM is locked).
    I was scared so i drove it again and watched air to fuel a bit more and giving a pull it holds a 13.3 but if you shift up and lug the motor it leans out bad like 17 and then some probably gauge doesn't read it actually. At cruise set @ 65 it bounces around anywheres from 14 something to 15 might even see a 16. I guess if i drive it i might have to just take it easy and shift more try not to lug it as much. I know I'd rather take the car for the weekend but wife probably would rather me take the trailblazer ss much more laid back cruiser, and easier to drive in the city.
    I RATHER BE BLOWN & STROKED THAN SPRAYED

  8. #28
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    Quote Originally Posted by joecar View Post
    To unlock, try this: connect V7 scantool to vehicle, go Flash->Read Calibration From PCM, checmark Try Alternate Keys.

    Tried that didn't work. It kind of seems like I'm screwed.
    I RATHER BE BLOWN & STROKED THAN SPRAYED

  9. #29
    Joe (Moderator) joecar's Avatar
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    I pm'd Paul to see if he has any ideas.

  10. #30
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    Quote Originally Posted by joecar View Post
    I pm'd Paul to see if he has any ideas.
    you messaged Paul or am i suppose to?
    I RATHER BE BLOWN & STROKED THAN SPRAYED

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