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- Thu Aug 31, 2017 12:05 am
- Forum: Powertrain
- Topic: Check engine and oily spark plugs
- Replies: 0
- Views: 787
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 ...