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Author Topic: TCU, TIP Chip, automatic transmission tuning, reading writing etc.  (Read 192728 times)
16g-95gsc
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« Reply #60 on: May 02, 2013, 05:18:24 AM »

I'm not saying that they do it, just that the TCU has the ability to adjust these parameters.  That in itself makes the idea of TCU flashing very worthwhile on a otherwise failure prone trans.

Kind of sad if that is all the vendors do and then charge so damn much.
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neuro
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WWW
« Reply #61 on: May 16, 2013, 07:05:53 PM »

This would be so great if someone could tune it ....... How did you pull it?



i unsoldered the eprom with chipquik, dumped with tsop adapter + willem usb then resoldered it when i saw i could not correct checksum for this =P
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ddillenger
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« Reply #62 on: May 28, 2013, 06:25:37 PM »

I'm going to go ahead and bump this for those that care. The file in the flash (29f200bb for 00-01, 29f400bb for 02-up) is byteswapped when read in a chipreader. For those brave enough to modify the files, make sure to byteswap before modifying, then again before writing it back.
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b5s4tt
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« Reply #63 on: May 28, 2013, 11:01:26 PM »

i have a giac tip chip as well as a stock one for 01 s4.
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ddillenger
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« Reply #64 on: May 28, 2013, 11:12:10 PM »

If you have a way of removing and reading the files, please do so and send them to me (or post them). If not, I can do it. PM sent.
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1gcrazy
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« Reply #65 on: June 10, 2013, 01:08:54 AM »

Anything ever become of this??
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ddillenger
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« Reply #66 on: June 10, 2013, 01:11:19 AM »

Anything ever become of this??

Yes. I have several examples of tuned files, and a method for checksumming (the 512kb files). All I need now are a few more originals for comparison. Anyone with stock TCU's, PM me with the Vag numbers.
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ddillenger
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« Reply #67 on: June 12, 2013, 03:18:39 PM »

I don't have the EXACT original for this file, but the one I do have is very close. As a result, I was able to do a bit of comparing. I need more original files!

From the file:

4B0927156DJ AG5 01V STAGE2T

Wasn't aware there were different stages of TIP chips, but I guess it'd make sense.

« Last Edit: June 17, 2013, 05:18:49 PM by ddillenger » Logged

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ddillenger
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« Reply #68 on: June 12, 2013, 03:38:21 PM »

RPM and Load for axis?

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AARDQ
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« Reply #69 on: June 12, 2013, 07:42:58 PM »

There are some 15 'maps' that show up, many of which seem to be duplicates.

http://nefariousmotorsports.com/forum/index.php?topic=2555.msg27638#msg27638
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ddillenger
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« Reply #70 on: June 12, 2013, 11:47:19 PM »

There are some 15 'maps' that show up, many of which seem to be duplicates.

http://nefariousmotorsports.com/forum/index.php?topic=2555.msg27638#msg27638

These aren't winOLS detected maps. They're significant because these maps make up the majority of the changes between the tip chip tcu's I've seen and the stock files.
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AARDQ
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« Reply #71 on: June 13, 2013, 08:42:16 AM »

These aren't winOLS detected maps. They're significant because these maps make up the majority of the changes between the tip chip tcu's I've seen and the stock files.

Oh, got it, cool.  Progress!
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Mantis
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« Reply #72 on: June 13, 2013, 02:41:15 PM »

Makes the most sense to me to have RPM and Load, but I am not very well versed
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phila_dot
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« Reply #73 on: June 13, 2013, 03:40:00 PM »

Load is not sent over the CANbus.

Mostly RPM, vehicle speed, and torque values.
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Rick
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« Reply #74 on: June 13, 2013, 04:13:09 PM »

Torque,

Load not sent until MED17.
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