UK-POLOS.NET - THE VW Polo Forum

Hi all.
Changed the O2 sensor on my son's 1.4 akk engine Polo and the fault code has returned. O2 sensor reading on vcds goes to 25% and then 0 (as fault code returns)

Any thoughts on what could be causing the car to throw this code?

Sent from my SM-G930F using Tapatalk

Check the wires to the multiplug to the right of the exhaust (looking from the front)

The wires and pins corrode and cause lots of problems, from memory