Thread: My Gryphon, changing trucks
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Old Sat, May 2nd, 2009, 11:36 AM
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Jackpine Jackpine is offline
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And, just to clarify things - there is a "bug" in the firmware that allows you to select Custom Options before completing one full programming session. The first programming session reads the stock file from the PCM so that it can build the Level 0 "restore file". Trying to use Custom Options in this first session has been responsible for several different errors.

Now that you've done a "clean" Level 2 program, have you tried going back and redoing it - this time with a change to the Custom Options parameters? And, if you do, don't forget you WILL have to manually verify/reset your Gear Ratio and Tire Size.

- Jack