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  1. #1
    Carb and Points!
    Join Date
    Dec 2020
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    4

    TunerPro RT Checksum error

    Hey guys, so I am working on a 2003 5.3l engine to go into my ar5 manual trans datsun 280z. I am writing a new bin file and when I try to save the file I get a message saying "Error - one or more checksums could not be updated. check checksum addressing, etc, for validity.". It still saves the bin though which is odd. I can still reupload the bin just fine. I will include the files that I started with (xdf and bin) and the final bin I am working on. Since it saved the bin could I just write it onto the p59 ecm? or would I brick it? Sorry for my ignorance as I cannot seem to find the particular solution from my own searching of the issue. Thank you for any help you can give me.

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