Recently bought an02 1.8T A4Q 5 speedfor my wife.Our first German vehicle. She loves it and I'm really impressed with the quality in and out. The vault like sounds when anything closes isa beautiful thing.With 84,000 mithe check engine light comes on with acode thats a badbank1 O2 sensor. I'm ready to replace the down stream sensor with a Bosch unit whena partssalesperson said that the walker unit was the same sensor and connector with minor cosmetic differences with the wiring (no tie wraps keeping the grommet in place thatfits intoto the heat shield clamp). Is this true and doesanyone have any experience with Walker?

 

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