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teerak2uk
28th May, 2021, 11:07 AM
https://uploads.tapatalk-cdn.com/20210528/db6d65a0bc808108d06349ec91410112.jpg

I have this ECU with start then stops believing it to be a checksum issue what options are there as it came to me with the problem already so I have no original read
ZiZiTun
28th May, 2021, 02:12 PM
When the engine start for about 1-2 seconds and then stop, is IMMO problem. When is bad cheskum, engine not start. If you need immo off, post file from eeprom.
teerak2uk
28th May, 2021, 02:16 PM
When the engine start for about 1-2 seconds and then stop, is IMMO problem. When is bad cheskum, engine not start. If you need immo off, post file from eeprom.The owner said was ok until someone tried to remap which is what made me think checksum
chrisimerk
28th May, 2021, 02:26 PM
The owner said was ok until someone tried to remap which is what made me think checksum

post flash and eerpom if you have mpps v18 you can read eeprom through obd socket or pin out the connector and read on bench

possible corrupt eeprom while flashing ecu with different sw hw etc as ZIZI said sounds like a immo problem
teerak2uk
28th May, 2021, 02:31 PM
post flash and eerpom if you have mpps v18 you can read eeprom through obd socket or pin out the connector and read on bench

possible corrupt eeprom while flashing ecu with different sw hw etc as ZIZI said sounds like a immo problemRead via bench is just + - and Kline or boot required
chrisimerk
28th May, 2021, 02:32 PM
boot not required if you can read and communicate with ecu do you have mpps v18?

problem you might have is if the eeprom is corrupt even boot mode wont let you write file so you need to write new eeprom with programmer which i have for that ecu thats worse case scenario
teerak2uk
28th May, 2021, 02:56 PM
Yes I have v18
chrisimerk
28th May, 2021, 03:08 PM
Yes I have v18

pinout the connector and navigate to generic then click ep on drop down menu
teerak2uk
28th May, 2021, 05:49 PM
Read via kline connection with bench cable
eeprom file attached
ZiZiTun
31st May, 2021, 09:45 AM
Read via kline connection with bench cable
eeprom file attached

try this with IMMO OFF, pass PM. Or write ori file for flash.
teerak2uk
31st May, 2021, 10:12 AM
Is already solved but thank you anyway