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Lambda sesnors - are both the same precat and post cat

  Fabia vrs tdi
are both the o2 sensors the same ? or are they different

some on the internet do say post cat and pre cat but on another site eurocarparts it just says sensors no pre or post cat in description


K-Tec Racing

ClioSport Trader
they are the same, bar the fact one has a longer lead...

they can be swapped.

  Fabia vrs tdi
perhaps i should just swap them over then, the emission warning light was on but turned itself out so perhaps if i just swap them the light will stay out


love my new exhaust ta