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terminator
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« Reply #90 on: October 11, 2013, 05:05:52 PM »
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Could anyone tell me please is it possible to swap TCU?
I have one TCU and I want to sell it to one guy, but it has a different software number.
And the question is how many memories TCU have? Only 29f400? Or it has soic8 or smth like this?
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ddillenger
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« Reply #91 on: October 11, 2013, 05:24:27 PM »
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It depends on the software numbers. Allroad TCU's are not compatible with A6's, A6's are not compatible with S4's. If the car is the same chassis, and has the same options (tip controls, sport mode on the shifter, etc) then it MAY work.
All B5 S4's TCU's that I've seen were able to be interchanged.
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terminator
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« Reply #92 on: October 11, 2013, 05:46:49 PM »
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Thanx again for the info)
There are 2 allroads, but mine has 156M soft 2003 MY, and allroad of that guy has 156F (156 if I remember correctly, but its "F" for sure)2002MY. And there were 3 version of allroad on the market.
1. 2001 year, ME7.1 ECU, "old" gear box.
2. 2002 MY, ME7.1 ECU (4z7907557M) but different instrument panel, audio and a little different gear box.
3. 2003 MY another ECU ME7.1.1 (4z7907557S or R), looks like the same gear as 2002.
I can see only one side of scheme and it has only 29f400. And I supposed it will be work if I desolder this flash from 2002 TCU and solder it to 2003 TCU. But as I know ECU has internal rom, soic8 eeprom and flash. And I'm afraid TCU has soic8 and different internal rom too.
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ddillenger
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« Reply #93 on: October 11, 2013, 05:56:59 PM »
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If you desolder the PSOP44 29F400BB, and solder it into the other one it will be 100 percent identical. The data on the soic8 is rewritten when booted with the new flash. You will have to properly softcode the unit, and that cannot be done on the bench, MUST be done in the car.
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terminator
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« Reply #94 on: October 11, 2013, 06:01:31 PM »
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Great! Thanx, really very useful info, will try it.
I think it can be easy coded with VAG-COM.
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MyTunes
Full Member
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« Reply #95 on: October 11, 2013, 07:15:25 PM »
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2002 and 2003 should be interchangeable as both are sport mode aka PRNDS. The 2001 is different since it doesn't have sport mode but instead PRND432. You could put a 2002 or 2003 tcu in a 2001 if you also changed the shifter bezel to match. Thanx again for the info)
There are 2 allroads, but mine has 156M soft 2003 MY, and allroad of that guy has 156F (156 if I remember correctly, but its "F" for sure)2002MY. And there were 3 version of allroad on the market.
1. 2001 year, ME7.1 ECU, "old" gear box.
2. 2002 MY, ME7.1 ECU (4z7907557M) but different instrument panel, audio and a little different gear box.
3. 2003 MY another ECU ME7.1.1 (4z7907557S or R), looks like the same gear as 2002.
I can see only one side of scheme and it has only 29f400. And I supposed it will be work if I desolder this flash from 2002 TCU and solder it to 2003 TCU. But as I know ECU has internal rom, soic8 eeprom and flash. And I'm afraid TCU has soic8 and different internal rom too.
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ddillenger
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« Reply #96 on: October 11, 2013, 07:46:39 PM »
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If you read the files, make sure to post them.
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MyTunes
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« Reply #97 on: October 11, 2013, 07:55:44 PM »
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I'm goin to start calling you the tip king LOL Are you getting anywhere with being able to decipher the files? I have a euro s8 tcu on its way. Want to read it before I put it in? If you read the files, make sure to post them.
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ddillenger
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« Reply #98 on: October 11, 2013, 08:13:08 PM »
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I know what they modify, and I have a good idea of what it does. I can replicate the results across multiple files, but I'm not comfortable enough to release anything without figuring out what ISN'T safe (doesn't seem like much honestly).
Yeah, read the S8. I don't have any of those.
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Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience!
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AudiMan85
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« Reply #99 on: October 12, 2013, 01:38:50 PM »
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Well if you come across needing any testing done on a TIP which I know you don't have LMK. I'll be willing to test something if need be. If you remember ddillenger I have a A6 2000 L-box.
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"Ride like I got a horse stable under my hood" ~ The Game - Too Much
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ddillenger
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« Reply #100 on: October 12, 2013, 02:13:48 PM »
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I do remember, and I'd be petrified to try anything on a car with an already failed converter. Damage an all.
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Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience!
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AudiMan85
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« Reply #101 on: October 13, 2013, 02:25:50 AM »
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True
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"Ride like I got a horse stable under my hood" ~ The Game - Too Much
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terminator
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« Reply #102 on: October 19, 2013, 06:16:54 AM »
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If you read the files, make sure to post them.
Planning to swap it on Monday  Can you confirm please, it has ST 24c16 eeprom? As I understang there are no memories on the back side of the scheme. |
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terminator
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« Reply #103 on: October 23, 2013, 11:36:05 AM »
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I have installed M-box instead of F-box. Seems everything is ok, gearbox works without any problems and DTC  I even didnt make any adaptation. |
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ddillenger
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« Reply #104 on: October 23, 2013, 11:41:25 AM »
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If you can, read the file off the dead one. If you're not capable, send it to me so I can!
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Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience!
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