Hi there im new to the forum and im impressed with what i see, just wondering if anyone could help with my problem on my golf it has started making a knocking noise under load. It has a misfire and i have changed the coil packs and put new plugs in and the problem remains. I had the car plugged in and came up with error code 00561 which is bringing me to the idea of lambda or maf, was just wondering if anyone had ever had this problem and if so what was the results. The golf is running standard and all oem equipment and it is an agu engine would be greatful for any help thanks Jay