Hi I hope someone can help me on this forum. I have a 2004 Polo 1.4 petrol BKY engine with this code, I have changed the MAP, cant find any air leaks. I have been told it could be the EGR valve, or the air fuel wide band 02 sensor, I am quite new to diagnostics, and I have a snap on verus, Can someone help me to diagnose the problem.

I thought a possible fuel pressure, but the code says it is Lean, and I have shed loads of black soot coming out of the exhaust, the emissions on the mot went off the scale.

Any help would be real appreciated