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Thread: 2021 csp5

  1. #11
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    So if I have a customer currently running a cp4 tune and goes for the cp3 recall. It will require a new base file to match that pump? Or can the FCA current flow just be changed? I know I had a few LML trucks that were able to be adjusted easily. But seems like the Cummins are different?

  2. #12
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    If you read a file with the another software suite there are a bunch of values that are different. A 2021 truck with the "CP3" flashed with a 19-20 OS for a CP4.2 doesn't run very well

  3. #13
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    Did you log it to see why? I know of a 20 truck with a cp3 that runs well with the cp4 calibration but he does say it doesn't feel "as strong" as his previous similar setup. I have not had chance to log it but I would imagine it would be evident in the the desired vs actual pids.

  4. #14
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    Quote Originally Posted by got boost? View Post
    Did you log it to see why? I know of a 20 truck with a cp3 that runs well with the cp4 calibration but he does say it doesn't feel "as strong" as his previous similar setup. I have not had chance to log it but I would imagine it would be evident in the the desired vs actual pids.
    Nah it ran so bad didn't want to keep it running. Modified the file this AM and flashed the truck his afternoon & it runs great with the correct pump data from the 2021

  5. #15
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    You just use a noncsp file then I guess?

  6. #16
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    Quote Originally Posted by got boost? View Post
    You just use a noncsp file then I guess?
    No 19-20 CSP OS with the pump data inserted

  7. #17
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    So what pump data parameters is changed? I wonder if they will make those parameters available to be viewed/changed VIA EFI software and not have to use 3 party programs.

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