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Title: 8DO907551 No letter??? Post by: Lost on October 10, 2014, 11:38:21 AM 8DO907551
S4 but which model is this? Friend has problem with ECU that can not be read from OBD? Boot Mode should work. Ok, too just flash in 551M in boot mode? Title: Re: 8DO907551 No letter??? Post by: nyet on October 10, 2014, 12:07:30 PM 8DO907551 S4 but which model is this? Friend has problem with ECU that can not be read from OBD? Boot Mode should work. Ok, too just flash in 551M in boot mode? Not without knowing if it has a 512k or 1M flash. Title: Re: 8DO907551 No letter??? Post by: Lost on October 10, 2014, 12:47:06 PM Ok, well opened it shoud be readible, what chip it is. Otherwise, If it is 1mb chip, bootmode, flash in M org file, and recode the cluster.
That should do it? Title: Re: 8DO907551 No letter??? Post by: nyet on October 10, 2014, 01:48:17 PM YEP!
Title: Re: 8DO907551 No letter??? Post by: Lost on October 10, 2014, 01:52:11 PM TX, Cheers mate!!
Title: Re: 8DO907551 No letter??? Post by: Rick on October 15, 2014, 05:41:25 AM Very early S4, similar to C box, 512kb.
Title: Re: 8DO907551 No letter??? Post by: gremlin on October 17, 2014, 08:08:51 PM Otherwise, If it is 1mb chip, bootmode, flash in M org file, and recode the cluster. That should do it? Unfortunately you have no chances to play any other S4 software (even 512K size) on this ecu. This ecu has MCU with incompatible software insidе. MCU internal ROM is a part of whole executive programm of ecu. Title: Re: 8DO907551 No letter??? Post by: Lost on October 18, 2014, 12:02:05 AM Unfortunately you have no chances to play any other S4 software (even 512K size) on this ecu. This ecu has MCU with incompatible software insidе. MCU internal ROM is a part of whole executive programm of ecu. Ok, good too know. I will just suggest him to buy a proper one. Do you know why this one has been used on S4-s? Title: Re: 8DO907551 No letter??? Post by: gremlin on October 19, 2014, 03:09:15 AM Do you know why this one has been used on S4-s? It was first ECU version for S4 AGB engine used up to May 1998. Title: Re: 8DO907551 No letter??? Post by: Lost on October 19, 2014, 05:29:28 AM It was first ECU version for S4 AGB engine used up to May 1998. Is it why it's not possible to use vcds through obd, or is it just the locked tune? Title: Re: 8DO907551 No letter??? Post by: gremlin on October 19, 2014, 10:57:29 AM Is it why it's not possible to use vcds through obd What do you mean? VCDS is diagnose tool. There isn't limitations to use any diagnose toools with this ECU for diagnose over OBD. Title: Re: 8DO907551 No letter??? Post by: Lost on October 19, 2014, 11:31:21 AM Well, that is the problem with the car.
It goes into limp mode, and it is not readible by OBD. I am thinking it is some kind of tune that is not alowing it or it is the ECU. Hense, wanting to bootflash it with Another file and see if it works in thatcase. What do you Think? Title: Re: 8DO907551 No letter??? Post by: gremlin on October 20, 2014, 12:32:40 AM Hense, wanting to bootflash it with Another file and see if it works in thatcase. What do you Think? Here is original dump for this ecu. Write it in boot mode and test on the car. Title: Re: 8DO907551 No letter??? Post by: gremlin on October 20, 2014, 12:49:23 AM Hense, wanting to bootflash it with Another file and see if it works in thatcase. One more important thing. You can use in this ecu ONLY ONE dump (posted above) ANY dump from other S4 ecus will be not suitable. Your ecu use as main RTOS kernel ERCOS V2.04 (c)ETAS Oct 15 1996 and all other ecus use ERCSU V1.1.6 SAB_C16x (c)ETAS Jul 24 1997 Title: Re: 8DO907551 No letter??? Post by: Lost on October 20, 2014, 10:20:21 AM One more important thing. You can use in this ecu ONLY ONE dump (posted above) ANY dump from other S4 ecus will be not suitable. Your ecu use as main RTOS kernel ERCOS V2.04 (c)ETAS Oct 15 1996 and all other ecus use ERCSU V1.1.6 SAB_C16x (c)ETAS Jul 24 1997 Great stuff, thanx mate. Will be fun If it solves the problem. Personally, I would just buy another ecu. Title: Re: 8DO907551 No letter??? Post by: Dalgas on May 03, 2016, 09:04:43 AM How did it end?
We have same problem, just that, the ecu are flashed with another file, and no start from motor.. Title: Re: 8DO907551 No letter??? Post by: Lost on May 03, 2016, 11:02:46 PM Just replace the ECU with something that can be worked on.
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