Hey guys, i have a problem with my A4 b6 with 1.8t bex engine. I bought a 2.0 ALT Ecu 8E0909557E, which is also me7.5. I flashed 8E0909518AS eeprom from original ECU with immo off, but i can't flash original software. Ecu's just not recognizing it... I tried flashing a S3 BAM software and mpps started recognizing it. I calibrated maf and other maps, and it is working. The car starts great but after 5s my fans goes crazy and engine starts choking, like it was enriched as f... or the ignition timing was wrong. I checked a vcds logs after this situation and it show one: Exhaust Gas Temperature Sensor: Open or short to plus. On the original 518AS ecu everything is working properly. Does somebody know what is going on?