redtop
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« on: October 15, 2014, 10:54:08 AM »
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Did some experimenting on the ME7.3.1 and found the following that is stored in the eeprom:
Odometer [km] 02h-04h. 3 bytes LSB first. Odometer [km] = value / 10
Max engine RPM reached [rpm] 06h 1 byte RPM [rpm] = value * 40
Number of overrevs 0Ah 1 byte number [1] = value
Time in overrev [ms] 08h-09h 2 bytes LSB first time [ms] = value * 100
2 byte checksum for 00h-0Dh is located at 0Eh-0Fh (LSB first) and is calculated as 10000h - (sum of 00h-0Dh).
Example: 01 01 40 E2 01 00 1E 00 0A 00 64 00 00 00 4F FE
Reported by Alfa OBD: Odometer, km: 12345,6 Number of overrevs: 100 Max engine speed counter, msec: 1000 Max RPM reached: 1200
Feel free to continue this thread with more info on the ME7.3.1 EEPROM.
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