Was maybe going to try Cataclean ?
Thanks for that, I looked at the sensor on the inlet manifold and it was Denso. I put some 30 quid intermotor sensor after the catalytic converter. Maybe this is the problem, it's not good enough quality.Use genuine denso wideband oxygen sensors. I had the same issue years ago when I had my 6th gen. Life was simple and good back then....
Thanks for that, I looked at the sensor on the inlet manifold and it was Denso. I put some 30 quid intermotor sensor after the catalytic converter. Maybe this is the problem, it's not good enough quality.