PDA

View Full Version : OM642 C320 CDI after tune ECU(EDC16CP31) wont boot



doupler
25th December, 2015, 06:58 PM
Hello,

I open the ECU read the ExtFlash, tune and write it back(Checksume should be ok)
after this Engine fan run only at 100% (ECU wont boot)

I write the old ExtFlash(backup) back und try again -> still the same

the Problem is 100% the ecu because i try to read the ecu without the car on k-line -> no Connection, ECU wont boot anymore

can somebody check the files please?

edit: file delete

mercis
25th December, 2015, 07:37 PM
you need now ori bdm dump

Babos
25th December, 2015, 08:40 PM
search other ecu and write full i think you can damage your ecu when open.
Or first take and renew your ecu and then synchro with car.

doupler
25th December, 2015, 10:09 PM
you think it is the Hardware of the ecu?
i will try a reflow of the Motorola chip, maybe a broken ball(but why i can read and write with BDM?)

if i write a fullbackup of internal and external Flash to a used ECU, should this work or have i to virgin the "new" used ecu too?

im not sure whats now the best way to slove the problem

Babos
26th December, 2015, 09:40 AM
the best is renew ecu.
and ask help from your tuner who made your mod file(Custom..,s).
Best regards.

doupler
26th December, 2015, 03:02 PM
yes i ask, but hes sure that checksum will be ok
can somebody renew the tuned and maybe the stock ext file for a try?

doupler
27th December, 2015, 03:28 PM
ok ecu is dead..i get a used one

should "A642 150 47 79" work in a c320cdi?
the ECU is from E320CDI 2008

twincam
27th December, 2015, 05:08 PM
it should work but dont open it becouse will dead like the first one,cut the hole in the housing to access BDM pads

doupler
27th December, 2015, 05:12 PM
yes thats the plan, just to cut a hole in the case for bdm access
I will report, hope that work

doupler
29th December, 2015, 09:29 PM
ok today i got the ECU, cut a hole in it,
clean it, try, engine fan not run, no start
wrote full backup to it -> engine is running