2500HeavyDuty
March 5th, 2011, 03:29 PM
i had recently tuned a lmm duramax and converted it to a dsp5 os.
drove it and everything worked ok. then i went to connect back to the ecm to read calibration data from the PCM, it could not detect the interface and then an it would attempt to read and then an error would come up.
basically it would not start to read the data. i noticed that my firmare and bootloader was out of date(2008 update) what could be the issue?
drove it and everything worked ok. then i went to connect back to the ecm to read calibration data from the PCM, it could not detect the interface and then an it would attempt to read and then an error would come up.
basically it would not start to read the data. i noticed that my firmare and bootloader was out of date(2008 update) what could be the issue?