So I tried to replace the sensor with a new one and I replaced the wrong one. I switched the one all the way on the left (facing the car). So which one is for the left bank? Obviously it's not the one all the way on the left, so which one would it be? There are 4 total in the front, and I know it has to be one of those. Anyone know?!!??!?!

Btw it says I'm running too lean bank 1.

 

there is a thread about the code you are running, it can be a few different things. Also, look in the stickies for the diagram of the sensors. search for the thread about the p0171 code, lots of different opinions and noone has fixed there problem as far as I know, I replaced both sensors and my light came back on a few days later.......sigh good luck.

 

Nooooooo will a sensor simulator work? This sux!