P1189 BMW -

Question

I would to purchase a car but this code is coming up does anyone know what it is?

Answer 1

P1189 Fuel trim control Bank 2 Sensor 1

This code codition is a deviation of the fuel trim the short and long trim it usually caused by a aging 02 sensor or a vacuum leak where it  is  running too lean where the crankcase ventilation valve is failing (Know as PCV valve). Or too rich from a mass airflow ,