Morning All
Just been on holiday for a week and the emissions lamp came on (lit all the time not flashing). Drove the car back to the caravan site and called the RAC (Asking them to just come out and read the codes), must have struck lucky with the RAC man as he was rather good with electronic diagnosis (on top of all of the standard RAC equipment he had his own oscilliscope, a tech 31 and various other code readers!).
The end diagnosis was 'Suspect CAT for Bank1&2, not performing to full potential, code P0420 (Bank1), code P0430 (Bank2) - CAT threshold'.
We could see the pre CAT sensor doing it's job succesfully - effectively reading and sending back a 'waveform' that you would expect, however the post CAT sensor was also mimicking this waveform as well which it shouldn't do as the output from the cat should need very little correction. From this he deduced that the CAT is not performing and recommended replacement.
Would people on here agree?
As i'm planning on keeping the car on for a while I was considering buying genuine new CATS (Do both sides?) from VX on TC, would anyone know the price?
Any thought's or comments most appreciated.