robzrr
Member
My OBD Sensor reading (using a one from 'Torque') displays a value when the car is running and fully warmed up of around 3 to 4 :1 which is very low considering that the air fuel ratio of diesels should be around 14.7:1 to 15:1 . The 1.2tdi polo 6R is standard and has no smoke and runs ok apart from a little roughness between 1 and 2 thousand RPM and fuel consumption is around 50mpg which is a bit low for a bluemotion model. I suspect the Oxygen sensor is faulty...any ideas?