TT (Mk1) Discussion Discussion forum for the Mk1 Audi TT Coupe & Roadster produced from 2000-2006

225 TT APR chip

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Old Apr 14, 2009 | 08:53 PM
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Default 225 TT APR chip

Does anyone know which way the older APR chip with EMCS installs in the ECM board. The stock chip has the indent on the chip for the start of pinout, but the APR chip is a piggyback style with a few different chips on a board. I really don't want to solder it in backwards.

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Old Apr 15, 2009 | 07:54 PM
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For those who care I called APR today and was told that the APR EMCS chip installs as I have it laid out in the above picture. The white EMCS connector for the ribbon that is on the left of the APR chip above is supposed to be installed facing left while looking at the back of the main cable connectors.
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Old Apr 18, 2009 | 06:41 PM
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Just so you know, APR's chip is not a piggy back. That special chip is what allows you to switch program and have multiple programs loaded onto the ECU. The new, just through the OBDII port, does the same thing but by only using software.
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