UK-POLOS.NET - THE VW Polo Forum

Can anyone give me some advice I have a vw polo 02 plate I've had 2 cat 1 sensors put on in 8 weeks the engine management light came on again today it's showing the sensor again

One thing, what sensor did you fit, was it an aftermarket one or a "same as fitted at factory" - unfortunately that can make too much of a difference! Original fit will have been NTK which is an NGK brand any other brand is likely to cause trouble.