Changing calibration for E38 ECU

[amehrnia]

I am going to explain my problem with an example:

I have 2 E38s:

No 1 Is a "2012 Chevrolet Silverado 1500 with a 6.2L V8 OHV 16V FFV" with the following VIN & Calibration Info:

VIN 3GCUKSE24CG305387
Engine Gen-IV V8
Transmission 6L80E Auto
PCM flash 2MB
Operating System 12653249
Calibration 12653852
OS ID AA
Cal ID
BCC ABHB
OS Level
Cal Level
Cal file name 12653249.calz
Cal file version 7.60
Cal file date 18th September, 2017
Operating System 12653249 $A8C797C0
Engine Operation 12640866 $4122698A
Engine Diagnostics 12640903 $C6552E48
Fuel System 12640909 $68FB7297
System 12640930 $3CBC513A
Speedometer 12640959 $D3AB7F2F

The second ECU belongs to the same Year Make Model "2012 Chevrolet Silverado 1500 with a 6.2L V8 OHV 16V FFV" with the following VIN & Calibration Info:

VIN 3GCPCSE29CG241793
Engine Gen-IV V8
Transmission 6L80E Auto
PCM flash 2MB
Operating System 12653249
Calibration 12653852
OS ID AA
Cal ID
BCC ABHB
OS Level
Cal Level
Cal file name 12653249.calz
Cal file version 7.60
Cal file date 18th September, 2017
Operating System 12653249 $A8C797C0
Engine Operation 12640866 $208DD63E
Engine Diagnostics 12640902 $DB842E26
Fuel System 12640909 $68FB7297
System 12640928 $EA1042E
Speedometer 12640938 $83F4BDA2

I don't know which calibration I should use to calibrate another E38 ECU with different VIN but same Year, Make & Model.

Thanks for your help in advance.

[joecar]

They both have the same OS...

so compare them using the V7 tunetool compare feature (open one of those tunes, open the other as the alternate tune, click the compare button)...

look at the differences between the calibrations (post them here).

[amehrnia]

They both have the same OS...

so compare them using the V7 tunetool compare feature (open one of those tunes, open the other as the alternate tune, click the compare button)...

look at the differences between the calibrations (post them here).

Here is what I got:

Comparison summary: 06:33:00 pm, Monday Dec 18, 2017

Calibration comparison between E38 EFI Forum 4CG305387.ctz and 2012 Chevrolet Silverado 1500 with a 6.2L V8 OHV 16V FFV.ctz.
*Values that differ by more than 0.000100% are considered different.


12653249 "Operating System" N/A "Identical."
12640866 "Engine Operation" N/A "Checksums are different, CAL: 4122698A<-> ALT: 208DD63E."
12640903 "Engine Diagnostics" N/A "Part number is different ALT: 12640903."
12640909 "Fuel System" N/A "Identical."
12640930 "System" N/A "Part number is different ALT: 12640930."
12640959 "Speedometer" N/A "Part number is different ALT: 12640959."
B0164 "P.E Mode Delay RPM Bypass" 61.036088 "CAL: 0 <-> ALT: 5000"
B0165 "P.E Mode Delay CTS Upper Bypass" 19.620050 "CAL: 21 <-> ALT: 121"
B0169 "P.E Mode Ramp In Fuel" -22.500968 "CAL: 0.50 <-> ALT: 0.05"
B3618 "P.E Mode Commanded Fuel" -0.049240 "Different from row 0 to row 32 inclusive."
B5101 "High-Octane Spark Table" -1.568627 "Different from cell: 0,0 to cell: 32,32 inclusive."
B5102 "Low-Octane Spark Table" -3.137255 "Different from cell: 0,0 to cell: 32,32 inclusive."
B5104 "Base Idle Spark Table" -3.137255 "Different from cell: 0,0 to cell: 32,32 inclusive."
B1906 "Knock Recovery Rate" -5.392157 "Different from cell: 0,0 to cell: 16,16 inclusive."
B2501 "TCS Maximum Engine Torque" -6.103609 "CAL: 1600 <-> ALT: 600"
B5208 "Rev Limiter Accel Modifier" 6.103609 "Different from row 9 to row 16 inclusive."
B3315 "Skip Shift Minimum Temp" -86.150922 "CAL: 255 <-> ALT: 0"
C6001 "DTC Type" N/A "Different from row 202 to row 385 inclusive."
C6002 "DTC MIL" N/A "Different from row 202 to row 385 inclusive."
H0105 "ECM Pulses per Kilometer Output Rate" -0.056176 "CAL: 405 <-> ALT: 404"
H0135 "Tire Size Correction" -2.860239 "CAL: 87551 <-> ALT: 80053"
H0136 "Tire Revolutions Per Kilometer" -0.106813 "CAL: 405 <-> ALT: 404"
H0139 "Driven Wheel Rolling Circumference" 0.000233 "CAL: 2468 <-> ALT: 2475"
H0140 "Non Driven Wheel Rolling Circumference" 0.000233 "CAL: 2468 <-> ALT: 2475"
H0122 "Axle Ratio" -4.427742 "CAL: 3.73 <-> ALT: 3.42"
H0125 "Front Axle Drive Ratio" -4.427742 "CAL: 3.73 <-> ALT: 3.42"
H0129 "Speed Limiter" -69.001297 "CAL: 511 <-> ALT: 158"
H0155 "Speed Limiter 4WD Low" -18.023957 "CAL: 250 <-> ALT: 158"
H0130 "Speed Limiter, RTD Failed" -69.001297 "CAL: 511 <-> ALT: 158"
H0131 "Speed Limiter, Comms Failure" -69.001297 "CAL: 511 <-> ALT: 158"
H0156 "Speed Limiter Source" N/A "CAL: ECM <-> ALT: Other Module"
H0161 "Speed Limiter Min Speed" 19.072251 "CAL: 15 <-> ALT: 113"

I also uploaded the .csv file (I tried to attach the file but the it didn't let me) Here is the link:

https://docs.google.com/a/npcautomotive.com/spreadsheets/d/1gm6wH8_6q61FHwWry9VJt8jeOW7Mbs0TISuFxWwpcFw/edit?usp=sharing

Please let me know if I should provide more information and thanks in advance my friends :book: