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Thread: 2005 cadillac cts-v - limp mode on dyno

  1. #1
    Senior Member
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    Oct 2015
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    Default 2005 cadillac cts-v - limp mode on dyno

    I hate even asking this question, but it's been so long since I've dealt with one of these older cars and now I have two in my shop!!!!

    I have one that I'm tuning, unknown engine (stroker motor? small cam?) ID 1050x injectors with a Procharger D1-SC on it.
    I'm trying to load it up on my dyno to get some preliminary numbers before I starting going to town on the VE, and it keeps going into LIMP MODE.

    I was hoping someone had some tips to prevent this.

    Here is my base file, generic datalog, and screen shot of the DTC's.
    LS1B - CADI CTS-V LS2 6M (COS5) - BASE FILE.ctz
    Click image for larger version. 

Name:	DTC - GEN 1 CTSV.jpg 
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Size:	92.5 KB 
ID:	22108
    DATALOG - GENERIC 1.efi

    Thank you for the help!
    The Gen 2's have never given me a headache like this.

  2. #2
    Joe (Moderator) joecar's Avatar
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    Apr 2003
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    28,192

    Default

    I don't see what is causing this...

    try disabling the MAP rationality test, try playing with the other rationality tests.

  3. #3
    Lifetime Member
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    Dec 2014
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    Default

    What throttle body is on it?

    C6101 and C6102 will need to be raised substantially or maxed out as well.

  4. #4
    Senior Member
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    Oct 2015
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    Default

    I figured that out when I saw what Joe wrote
    I did max them out

    Stock intake and TB. I don't see this OS a lot. It's probably been over a year! So my base file was not up to snuff.

    And, of course, I ran into another problem.
    These ECU's in these cars don't like to communicate easily
    I have to uncheck the High Speed box
    And I can complete a full flash!!!

    Which means I'm going to have to pull the ECU and it's relocated in the bumper...great!!!

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