p0471

Hi my 2011 2.2 Cdi blueeff has the engine check light up and on the obd reader the codes where P0471 and P0472 - is there any common issues anyone has had with this - it says exhaust back pressure or similar????

Hy everyone My CDI 220 54 plate, is reading those 2 codes P0471 (exhaust pressure sensor "A" circuit range performance) and P2A00 sensor circuit range/performance (bank 1 sensor 1) Please can anyone advice me what it means and What I need to do about it Also when I drive it around it feels like...

Hi , I was wondering if any body could me with a bit of advice please. I have a c220 cdi 2005 coupe . I used a obd scanner on my car and its coming up with the code P0471 but only at tick over (780 rpm ). If I raise the tick over by 100 rpm it doesn't come back until the engine is at idle. If...

Where is this bloody sensor?........next to the EGR or one of the ones in the cat or dpf? its on a C200 CDI MY2005 JAN...