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Title: AUDI TT 8N, APP, ECU Software Swap Post by: el_wacunio on February 21, 2025, 08:13:56 AM Hi Everyone!
For a few weeks now I was investigating my TT because it has engine errors coming mainly from oxygen sensors and chain tensioner solenoid. As I discovered, someone before me changed the ECU for a 8N0906018AQ one, and I believe that's a 1.8t AUQ engine ECU and probably left the wiring as it was. After doing some research I think the right ECU for my car is 8N0906018Q, but I was thinking whether it is possible to upload a 8N0906018Q file to a 8N0906018AQ that I have and it could fix my problems? Also i have a TT with AJQ engine and I've red that AJQ and APP ECU can be swapped, but do I need to do some modifications or is it a straight-forward swap? Many thanks to everyone who helps. |