Mr1chards0n

Hi johnatg Thank you for this info, I've got the below from Google which make me believe this could be it. "An air/fuel sensor can read a much wider and leaner range of fuel mixtures than a conventional O2 sensor. That's why they're also called “wideband” O2 sensors. Another difference is that A/F sensors don't produce a voltage signal that suddenly changes on either side of Lambda when the air/fuel goes rich or lean." I'll give it a try and let you you know. thanks again!

Hi Having the engine warning light as well as check VSC on I cleaned the EGR valve which seemed to do the trick last time but I am still having problems alluding to DPF. After having a dpf specialist run a diagnostic check he insists that it is the oxygen sensor either needs cleaning or replacing. I can't find anything online to show the oxygen sensor on this model (IS220D) I've gone to a local garage and the guy was adamant that the diesel models do not have oxygen sensors? Can anyone help with this please?