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Thread: Can't get the crankshaft relearn done

  1. #11
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    Does that mean the crank sensor just went out when I swapped PCMs? I wasnt getting any codes with the stock PCM

    Also, I know the manual is old but shouldn't there still be some gauge readouts when doing the relearn? What about the timer? Is that still a feature?

  2. #12
    Joe (Moderator) joecar's Avatar
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    What was the stock PCM and what is the new PCM...?


    No, there's nothing else, when you detect the stumble you let it spin down to idle, shut it off and wait... the timer should still be there, there's an option in the tunetool.



    What V7 software build version do you have installed (Help->About)...?

  3. #13
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    Quote Originally Posted by joecar View Post
    What was the stock PCM and what is the new PCM...?


    No, there's nothing else, when you detect the stumble you let it spin down to idle, shut it off and wait... the timer should still be there, there's an option in the tunetool.



    What V7 software build version do you have installed (Help->About)...?
    I went from a 99 s10 black box to a 2002 0411 pcm. Using a 2002 s10 4.3 stock tune. efilive scan is V7.5.7

    One thing, my tachometer is now reading about 25% slow (common from what I've read about this swap) So on my dash when I rev, it goes above 4000. I go all the way up until it stumbles and then I let off, it winds down (engine light is still on at this point), it hits idle, I shut it off completely and hit the deactivate button on the program. Turn it back on and the light is still there. Clear it and immediately comes back.

    Is there something I need to enable? Like some checkbox somewhere? I may have to pay $50 to get it done at a tune shop near me. I'd rather do it myself.

  4. #14
    Joe (Moderator) joecar's Avatar
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    Do Help-About and look at the build version (should say build 211).


    If you're running a 411 PCM, I would flash in OS 12212156 (with all your tables copied into it), and try doing the CASE relearn again;


    there's not much to a CASE relearn.

  5. #15
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    Quote Originally Posted by joecar View Post
    Do Help-About and look at the build version (should say build 211).


    If you're running a 411 PCM, I would flash in OS 12212156 (with all your tables copied into it), and try doing the CASE relearn again;


    there's not much to a CASE relearn.
    That is the OS I am running. I looked at the sensor and it is very clean and all wires intact.

    I expected it to be easy but apparently I am doing something wrong

  6. #16
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    Can you list what exactly you are running? Is it a 1999 s10 4.3 with an automatic or 5 spd manual trans? 2wd or 4wd? Its not like you are doing a relearn on a bone stock vehicle with the stock ecm correct?
    Last edited by slows10; August 28th, 2012 at 10:27 AM.
    1997 S10, 06 trailblazer SS LS2 swap, 4L70E trans, 76mm turbo. Factory ZQ8 suspension. 3.08, G80 w/a zexel. With a 0411 swap.

  7. #17
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    Do you have every pin installed correctly as the lextech spreadsheet calls for? I assume that is what you are using? Have you done an adequate search of this subject concerning a 411 ecm swap and a crank relearn issue? Not just on this forum but a google search. If you are getting a P0327 can you put the highest octane fuel available just to be sure? And also do you have the knock sensor tables set up correctly for your swap? From what I remember you cannot have any dtc's present when doing the relearn.
    Last edited by slows10; August 28th, 2012 at 10:31 AM.
    1997 S10, 06 trailblazer SS LS2 swap, 4L70E trans, 76mm turbo. Factory ZQ8 suspension. 3.08, G80 w/a zexel. With a 0411 swap.

  8. #18
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    Verified wiring twice. Even found an error in lextechs wiring an told him about it.

    I have 99 s10 zr2 4.3 5speed 4x4

  9. #19
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    There are some problems with the spreadsheet in some situations, it is not perfect for every make and model. Do you have a genuine factory service manual for your s10? Or a way to get genuine wire diagrams for your 99 s10 and a 2002 s10 if not you will have to depend on info you read to help fix your problem. Do you have your brake and clutch switch pinned correctly? Not what the spreadsheet says but what a factory diagram says?
    1997 S10, 06 trailblazer SS LS2 swap, 4L70E trans, 76mm turbo. Factory ZQ8 suspension. 3.08, G80 w/a zexel. With a 0411 swap.

  10. #20
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    What pins are you using for the brake and clutch switch?
    1997 S10, 06 trailblazer SS LS2 swap, 4L70E trans, 76mm turbo. Factory ZQ8 suspension. 3.08, G80 w/a zexel. With a 0411 swap.

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