The ecm is a 1227165 with aftermarket burned chip.....how do you determine which mask to use to read and write the 27SF512 (32B.xdf or 6E.xdf)
Thanks
The ecm is a 1227165 with aftermarket burned chip.....how do you determine which mask to use to read and write the 27SF512 (32B.xdf or 6E.xdf)
Thanks
my easiest way is to install TunerCats and just try to open bin file, program will tell You which mask is needed and You can switch to TunerPro.
I believe that Bithoist will give you the mask ID. Upload the file and Bithoist will check to see if its stock.
http://www.gearhead-efi.com/bithoist/query.php
For $OE $OD $E6 etc., the mask ID is in the .bin and can be seen with either XDF, not sure if same for your ECM, but might be worth try.
89 K1500 Scottsdale 5.7L 5spd 3:42 RamJet cam Dart iron TBI heads 427 PCM swap
95 C2500 Cheyenne 6.5L turbo diesel 4L80e 4:10 DB2-4911 Manual pump conversion 0411 PCM trans control 2Bar COS
05 Outback XT 2.5L turbo gas auto
Thanks guys..sorry for the slow response...have company. WASyl..bin enroute
Gearhead-efi link for 1989 TPI Information: http://gearhead-efi.com/Fuel-Injecti...Information-6E
The link includes:
File Type: xdf $6E.xdf (101.1 KB, 866 views)
File Type: ads 1227165_6E.ads (58.8 KB, 392 views)
File Type: adx 1227165_6E.adx (48.4 KB, 692 views)
File Type: adx $6E-1227265-V1.2.adx (48.6 KB, 535 views)
File Type: adx $6E-1227265-V1.adx (48.6 KB, 331 views)
AUJM 89 F-car 5.7TPI auto with 3.27.BIN (16.0 KB, 301 views)
dave w
Thanks Dave...an original AUJM is 16.0 KB, the attached bin is 64.0 KB (labeled wrong?) Not sure which mask to use with that attached bin, $6E, 32 or $32B in the 1227165.
If you look at the BIN in a hex editor, you will see that the first 48 kb are all blank. Only the last 16kb actually have data. This appears to be a BIN that was taken from an aftermarket chip that is larger than the OEM chip, and rather than using BIN stacking (which would repeat the data), they just filled the first 48kb with FF.
After removing the junk data at the head, I loaded the BIN up with the $6E XDF and ran a comparison against the stock AUJM BIN. Here's the results:
aujm.jpg
Last edited by NomakeWan; 08-31-2021 at 09:06 PM.
1990 Corvette (Manual)
1994 Corvette (Automatic)
1995 Corvette (Manual)
your bin is 64k not 16 cause it is stacked due to bigger chip used. factory '165 ECM uses EPROM 27c128 and that gives 16k memory, your one is EEPROM (flash) 27SF512 with total memory of 64k. memory must be writen blank or with some sort of data. most people use bin stacker via unerpro just to stack files with proper data and fill chip memory so that ECM won't start throwing codes and go limp mode.
Thanks all...you guys are great.....finally making sense.
i have sent you splited file t ork with, after making changes you need to stack it before burning it.
best regards
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