Maybe, yes. Check the size / number on the chip. At times GM used larger chips and burned the file into the highest addresses. Try changing the start address for reading to $8000. The file you uploaded is not a valid calibration.Anyone seen anything like that before? The suburban seems to run with it.
I did end up reading the chip again as a 64kb and getting the valid results in the other half.
When I attempt to change $900A from $80 to $10 the SES light doesn't do the quick flash on key on, TunerproRT wont communicate, and it save a 51 PROM error. I have confirmed I am burning correctly by burning two chips, one stock, one with just $900A modified. Is there something I am not doing correct? I am just opening the bin in a hex editor, changing the value, and saving.
I did finally manage to burn a bin that worked. Just editing the hex did not work. I had to create the flags in the tunerpro xdf, make the change, then save. This updated the checksum and then it worked.
Interesting. Did you use $900A as the address in Tunerpro? You may not be changing the MASK ID. I believe the correct address to set the "Experimental" Mask ID would be $8000A?
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