262ci Forum (4.3)
My '03 S10 4.3 SES light came on, and my mechanic said it was bank 1 sensor 2 o2 sensor. Which o2 sensor is it that needs to be replaced? I would like to do it myself to save some cash, but determining which sensor is bank 1 sensor 2 on my model seems to be a source of debate... A diagram for my...