Unexplained Knock
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Joined: Jan 2004
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From: Northwest
Its even more possible that I remembered them backwards. Then again they might be something different entirely depending on year. I know that the 05 is the same address but the 05 is not the same rom as an 03-04.
There are some address locations that are the same in all of the roms.. Others that occur at the same offset from the end of the file..
I think this is one of those locations where the rom is rarely/never altered and occurs before the rest of the typically modified code and maps therefore it ends up being the same in most of them.
That is why many locations of maps are the same, but the axis data on many are different.. The axis data is located somewhere after portions of code more frequently modified..
I don't know if the RPM enrichment value that was found really has much affect, but I'm pretty sure that it was added for warranty reasons.. If its 'inverted' then it may reduce fueling by a particular value and go accordingly leaner, therefore the knock is possible.
I think this is one of those locations where the rom is rarely/never altered and occurs before the rest of the typically modified code and maps therefore it ends up being the same in most of them.
That is why many locations of maps are the same, but the axis data on many are different.. The axis data is located somewhere after portions of code more frequently modified..
I don't know if the RPM enrichment value that was found really has much affect, but I'm pretty sure that it was added for warranty reasons.. If its 'inverted' then it may reduce fueling by a particular value and go accordingly leaner, therefore the knock is possible.
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