While driving my engine check light will come on after 5-10 mins and if i drive hard it will come on a little earlier. The check light will come on a remain on. When i check the code it came up as a one which is the o2 sensor. Eight the low circuit or high circuit. Now a assume the o2 has gone bad? Where can i get a replacement?
Have any of you used bosch?

b16a
zort