Hi All Its me again....... 2003 t4 estate, 2.0vvti manual Got the Engine light on and bought a code reader which spouted out P0136 Which i believe is heated oxygen sensor bank 1 senor 2. It also says circuit malfunction...... Turned the car off for the night next day no light, but have always had this lack of power and hesitation when cold and under load. COuple questions, WHere is bank 1 sensor 2? Is this sensor causing the problems im having with the car? And if the light isnt coming back on d