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Thread: Help!!!!!!!!! Allen

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  1. #1
    Join Date
    Apr 2005
    Posts
    202
    Ok I just got done taking my magnacharger off and I put the new tune on that Allen mailed me. My truck threw a code P0315 - Crankshaft position (CKP) system variation values are not stored in the PCM memory

    It's runs fine so is it just the tune?
    2500HD 6.0 - K&N filter, TB bypass, Ported and Polished TB, no cats, SD Tune BY Nelson, 42# injectors, STS, T-67 .96 A/R, @5psi Walbro 255lph, Air to Water Intercooler, coolingmist kit @ 6ghp
    CJ-7 - K&N, TBI 350, dana44 front locker, 9" ford rear spooled three link, 38.5" SS, bead locks,and tons more.
    http://i44.photobucket.com/albums/f4.../100_04079.jpg http://i88.photobucket.com/albums/k1...eepcroped2.jpg

  2. #2
    Join Date
    Apr 2005
    Posts
    4,229
    It is a crankshaft position relearn, common occurance when swapping PCMs.

    If it runs fine, then it is okay. Sometimes they run like crap with that code, which isn't okay.

    I pay the local garage $20 to perform the relearn procedure, it takes maybe 5 minutes.
    Gone, but not forgotten!

  3. #3
    Join Date
    Apr 2005
    Posts
    202
    Thanks for the help I got it done for free at the local chevy dealer.

    Also Nelson performance returned my call very quick to help me out.
    2500HD 6.0 - K&N filter, TB bypass, Ported and Polished TB, no cats, SD Tune BY Nelson, 42# injectors, STS, T-67 .96 A/R, @5psi Walbro 255lph, Air to Water Intercooler, coolingmist kit @ 6ghp
    CJ-7 - K&N, TBI 350, dana44 front locker, 9" ford rear spooled three link, 38.5" SS, bead locks,and tons more.
    http://i44.photobucket.com/albums/f4.../100_04079.jpg http://i88.photobucket.com/albums/k1...eepcroped2.jpg

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