1991 corvette Timing Advance Issue

[al203]

Trying to tune using Moates Autoprom and TunerPro RT. There is a disconnect between what the programed timing is and the actual. As soon as the TPS comes off 0% the timing (SA-REF and SA_TDC) jumps to max 40+ degrees advanced (reported and actual). Base timing is properly set at 6 degrees. All SA adders have been zeroed out and the Spark tables call for only 20 to 27 degrees in the 400 to 1400RPM and KPA 20 to 60 range. I have tried various combinations of 2 ECMs, 2 DUI distributors and 4 different distributor control units. All with same results. The car is a 1991 Corvette L98 383 used for road course racing only. Anyone dealt with this problem or can you see some problem with my bin? I have spent many hours on this and other forums haven't found any insight to this problem. Any help would be welcomed.
Bin, ADX and XDF files attached.

[steveo]

sorry i don't know specifically what's wrong, but does a factory bin produce the same results?
if not you should do a table compare in tunerpro and see what's different. something you changed probably bit you
if it does still produce the same results it's a hardware problem

[al203]

I put the original memcal with original program back in and the timing appears to follow the tables ok. I have noticed that whenever I run the car off the Moates emulator or if I burn a chip the engine does not appear to be following the revised bin. I have been playing with this for over 6 months, and I've never been confident that the ECM is seeing or using the changes that I've made. I always do the verify between the bin I am working with and what's in the emulator. I even download the emulator to a separate file and use the compare function with the working bin. They always agree.
I have compared the original bin to my modified bin and don’t see anything that should cause a problem. Most of the differences are in the tables.
Next I will load the original bin into the Moates emulator to see if it works. This should tell be if there is a Moates issue.

[space387]

I'll compare it to mine when I get home. It may be in your warm-up table causing it to add to the base timing.

[al203]

Ok Guys...
I talked to the Moates support and he set be straight. I have been doing the bins as a 64K file. However, the 1227727 ECM uses a 32K file. So all my changes were being made to the wrong section of the EEPROM, that's why the changes were not being reflected in the engine performance.
I down loaded the orginal bin as a 32K file and reburned it to a 27SF512 chip with the correct start, stop and offsets and now both the burned chip and emulator work as they suppost to.
Now with that out of the way I can get on to actually tuning the car. Next race i,m shooting for is a 14hr endurance race at Daytona in April.