Discuss Engine, Gearbox and Exhaust
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Hi there i need some help. Spark plugs in my polo (1.2 petrol) are covered in oil + i get check engine light code no. 16556/P0172 - System Too Rich, Bank 1 and irregular behaviour while idling. Is it possible these problems are related? Engine check light turns on and itself go away after few hours sometime days but later on coming back again and again. Thanks.