Ive just had my S3 remapped. It was fine for about 100 miles but then after that its got very jurky on acceleration. The CAT was glowing so i took it to Awesome GTI today and they dont really want to know. They stuck it on fault diagnosis for me but no faults recorded.
My brother suspects faulty lambda. Is this usually situated hidden under the strut brace because thats the only thing i can see screwed into exhaust.
Thanks in advance