[Robbie200]

I had exactly the same codes 8 weeks ago. Changed the plugs and no codes for 4 weeks and then it's done it twice since.

The codes relate to bank 2, precat O2 sensor, but I haven't got to the bottom of whether the O2 sensor is the fault or if it's something else causing the fuel trim to go out of range. I will probably change the O2 sensor when the weather gets a bit warmer. I reckon it may also be injectors.

Light has been off for the last two weeks. As you say, the engine runs rather rough when cold.

I had similar codes 6 months ago for the bank 1, precat O2 sensor and a new sensor cured it.

If you get the cure, then please update the thread.