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#1
Wed, February 10th, 2010, 02:02 PM
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Welcome!
 This can occur during an attempt to program the PCM after installing the Gryphon in the vehicle.The Gryphon will detect if the PCM is stock or not, and if it is NOT stock then it will stop dead in it's tracks with a checksum failure. This problem can also be caused by a missing "stock" file.Contact PHP to restore the PCM to stock or to download the missing stock file. In other words you may have on nonstock program on your pcm. There is another thing you need to look at also to see if you have custom tunes still loaded on the Gryphon. I'll be back with that.
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#2
Wed, February 10th, 2010, 02:12 PM
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Thanks 88, if it's not stock (and it might not be, as the previous owner had a superchips program installed on it before i bought it), but the transmission has been replaced...wouldn't the dealership have re-flashed the system when they installed the new tranny? It sure felt slower after that, may have been in my head as to wanting to baby it a little afterwards though?
Is it easier/cheaper to have Bill work with me to correct the issue or should I have the dealership re-flash the truck? |
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| Tags |
| checksum, error, gryphon, hexcode, vista |
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