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Author Topic: TT225 ECU versions  (Read 888 times)
Sr. Member

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« on: January 03, 2019, 11:46:49 AM »

I have 2 TT with 018k. 1024k IIRC.
Recently friend came by with his TT225. 018T. Could not write file. Then changed to 512k memory format and voila.
Today, local guy with TT225 asked about tuning/fixing his car; he thinks his ECU is acting up. 018AT ECU. Seems also to be a 512k format.
BUT, I cannot find another 018AT listed used anywhere.

What other boxes are compatible with his 018AT? Want to get a spare, immo defeat and put a stage 2 tune on.

2002 Allroad 2.7T 6spd stage 2
1998 A4 1.8T 5spd stage 3
1996 A4 2.8 auto stock
Jr. Member

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« Reply #1 on: January 19, 2019, 03:39:37 AM »

AFAIK, The 512k versions came in two flavours - with & without ESP.

Binaries are similar enough though...

If the car has ESP, 8L0906018M or 8N0906018AE.

Without ESP, 8N0906018R (and another I can't think of now)

To be honest, you're better off getting a 1024k ECU and a wideband sensor instead, it's not a lot of work to convert.
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