P12A2 Fuel rail pressure sensor
P0171 Fuel trim lean Bank 1
P0174 Fuel trim lean Bank 2
P0430 Catalytic below threshold Bank 1
Not using fully synthetic oil , it will ruin the PCV (if equipt) or the crankcase ventilation valve.
33.7k questions
32.5k answers
1.3k comments
23.0k users