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Thread: Problems with CKP relearn on 2001 12200411 PCM

  1. #41
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    that is the tricky part as the crank trigger on this engine only does 4x... not 24x. Either machine up a reluctor ring or no other possible way.
    "All that is needed for the triumph of evil is that good men do nothing..."

  2. #42
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    Would the different firing order for the LSX versus L31 motors make the swap a problem?

  3. #43
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    It should only be a matter of swapping around the injector and coil pigtails to the right sequence. What is the tooth count for the Cam Sensor?

  4. #44
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    Wow, I dug this post up while doing a search for something else. This has come a long way. Many have already converted to the 12200411 PCM using the Express Van calibration with great results.

    The latest progress with the early small block is running LS1 coil per cylinder. The first vehicle EFI Connection put this is was a 1982 S10. The engine is also equipped with electronic throttle. More about the S10 here: http://www.eficonnection.com/eficonn...0Wildside.aspx





    Yesterday the truck running this engine made good numbers on a Dynojet.

    24x LS1 PCM on Early Small-Block Chevy and LT1/LT4
    http://www.eficonnection.com

  5. #45
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    Really good looking numbers.

  6. #46
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    Can you not have any other DTC's set to be able to do the CASE relearn? I dont' have a MAF, and I press down the brake pedal before I hit the CASE relearn and after I wait til 85C and then hit the CASE relearn button, and nothing appears.... do I somehow need to clear the MAF code? This is a 2001 WS6 with COSv5.
    Last edited by Haans249; April 16th, 2009 at 06:45 AM.

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