bigal55

iTrader: (1)

Have an 88 Vette with the 4+3 manual trans. Want to change overdrive default to off. Confused as to what XDF for TunerPro, 32b or 6e? Some posts say 32b for 88 and others say 6e. 32b gives weird values for various scalars and tables appear to be off. Also would like to know of an XDF that has the overdrive parameters. I understand that GM used some or all of the same logic of the TCC function for the manual overdrive logic but am not sure and wouldn't want to modify the wrong parameter. I have read the original PROM (ABTU) and have the BIN ready to modify, just need the correct XDF or even the memory location. Thanks in advance!
Al

RBob

iTrader: (1)

Check byte #8 of the BIN (9th byte), that is the maskID.

RBob.

bigal55

iTrader: (1)

Thanks RBob! Added that parameter which then helped to figure out the weird values, wrong radix for some parameters (floating point versus hex). Thanks again, your a life saver!