OK then, I'm not sure what's going on or what I am going wrong.  I just tried it like 5 times, making sure to put out.bin and each time its the same thing  It says there are 7 errors and it says it fixes 7 errors.   The bins I posted are the bins that me7sum put out.   Ive tried spacing/no spacing/double spacing/ect   It only works one way of course and it always reports errors fixed. 

Microsoft Windows [Version 10.0.18363.1016]
(c) 2019 Microsoft Corporation. All rights reserved.

C:\Users\Owner>C:\Users\Owner\Desktop\tuning\tuner\ME7Check.exe C:\Users\Owner\Desktop\tuning\maps\maps\Stg2_Nef_Hitachi_Final_O2D_EGTD_CS.20psi.bin
Access is denied.

C:\Users\Owner>C:\Users\Owner\Desktop\tuning\tuner\me7sum.exe C:\Users\Owner\Desktop\tuning\maps\maps\Stg2_Nef_Hitachi_Final_O2D_EGTD_CS.20psi.bin out.bin
ME7Sum (v1.0.5) [Management tool for Bosch ME7.x firmwares]
Inspiration from Andy Whittaker's tools and information.
Written by 360trev and nyet [BSD License Open Source].

Attempting to open firmware file 'C:\Users\Owner\Desktop\tuning\maps\maps\Stg2_Nef_Hitachi_Final_O2D_EGTD_CS.20psi.bin'

Step #1: Reading ROM info ..
 Searching for EPK signature...OK
 Searching for ECUID table...OK
 EPK         : '40/1/ME7.1/5/6005.01//22m/DstC2o/011200//'
 Part Number : '8D0907551M  '
 Engine ID   : '2.7l V6/5VT     '
 SW Version  : '0002'
 HW Number   : '0261207143'
 SW Number   : '1037360857'

Step #2: Reading ROMSYS ..
 Startup section: word[0x008000]+word[0x00FFFE]
 @08038 Add=0x00013225 CalcAdd=0x00013225  ADD OK
 All param page: word[0x010000]+word[0x01FFFE]
 @01b9b0 Add=0x00971D CalcAdd=0x00971D  ADD OK

Step #3: Reading RSA signatures ..
 Searching for RSA offset #0...missing
 Searching for RSA offset #1...missing

Step #4: Finding CRC table(s) ..
 Searching for CRC table(s)...OK
 CRC table(s) OK

Step #5: Reading Main Data Checksums ..
 Searching for main data CRC pre block...missing
 Searching for main data CRC/csum blocks...OK
 Searching for main data CRC offsets...OK
 Searching for main data checksum offsets...missing
 Main CRCs:
 1) 0x010002-0x013FFE @7a866 CRC: 47443341 CalcCRC: 47443341    CRC OK
 2) 0x014252-0x017F4E @7a86c CRC: 5879293D CalcCRC: 6066DF05    ** FIXED **
 3) 0x018192-0x01FBB0 @7a872 CRC: 25DAF102 CalcCRC: 7DDB8C76    ** FIXED **

Step #6: ROMSYS Program Pages
 Program pages: 8k page first+last in 0x0000-0xFFFF and 0x20000-0xFFFFF
 @00803c Add=0xABDDC5 CalcAdd=0xABDDC5  ADD OK

Step #7: Reading Main Program Checksums ..
 Searching for main program checksum..OK
 ROM Checksum Block Offset Table @1e75a [16 bytes]:
 1) 0x000000-0x00FBFF CalcChk: 47AF0B2F
    0x00FC00-0x01FFFF CalcChk: 28DEE662 CalcCRC: 963DE673 SKIPPED
 2) 0x020000-0x0FFFFF CalcChk: 9CC25257
 @fffe0 Chk: 9CC1A12D CalcChk: 9CC25257 ** FIXED **

Step #8: Reading Multipoint Checksum Blocks ..
 Searching for multipoint block descriptor #1...OK
 1) <14224>  0x024000-0x02658D Chk: 0B08F804 CalcChk: 0B08F804 OK
 2) <14234>  0x014000-0x014243 Chk: 00540FE9 CalcChk: 00540FE9 OK (i)
 3) <14244>  0xFFFFFFFF-0xFFFFFFFF  END
 Multipoint #1: [2 blocks x <16> = 32 bytes]
 Searching for multipoint block descriptor #2...OK
 1) <1fbb2>  0x000000-0x003FFF Chk: 0FA0F5CF Boot: (whitelisted) OK
 2) <1fbc2>  0x004000-0x007FFF Chk: 0F4716B3 Boot: (whitelisted) OK
 3) <1fbd2>  0x000000-0x003FFF Chk: 0FF728A4 CalcChk: 0FF728A4 OK
 ..........
64) <1ffa2>  0x0F4000-0x0F7FFF Chk: 1FFFE000 CalcChk: 1FFFE000 OK
65) <1ffb2>  0x0F8000-0x0FBFFF Chk: 1FFFE000 CalcChk: 1FFFE000 OK
66) <1ffc2>  0x0FC000-0x0FFFFF Chk: 1FFDE002 CalcChk: 1FFDE002 OK
 Multipoint #2: [66 blocks x <16> = 1056 bytes]

Step #9: Looking for rechecks ..
    <1fc42>  0x01C000-0x01FFFF Chk: 09F0AD13 CalcChk: 09F0AD13 OK (recheck)

*** Found 73 checksums in C:\Users\Owner\Desktop\tuning\maps\maps\Stg2_Nef_Hitachi_Final_O2D_EGTD_CS.20psi.bin

Attempting to output corrected firmware file 'out.bin'
├╛ Opening 'out.bin' file for writing
├╛ Writing to file
├╛ Validating size correct 1048576=1048576
├╛ All OK, closing file

*** DONE! 7/7 error(s) in C:\Users\Owner\Desktop\tuning\maps\maps\Stg2_Nef_Hitachi_Final_O2D_EGTD_CS.20psi.bin corrected in out.bin! ***

C:\Users\Owner>

Here it is again. You can see at the top where it  says xxxxx20psi out.bin
And again at the bottom, it clearly says xxxxx20psi.bin corrected in out.bin

In cmd I put me7sum(space)bin(space)out.bin

Am I missing something?   This is how I did it before and it worked fine.

I posted the file that me7sum sent to the folder.  I have no idea why they aren't out.bin but those are what's there.