Hi everyone, new owner here and just checked the codes causing the CEL to come on. P0031 and P0037, Bank 1 Sensor 1 and Bank 1 Sensor 2. After poking around on this forum I'm a little confused, where are these sensors located? I've read they are behind the tail lights but it looks like there are sensors located directly on each side of the exhaust manifold clearly seen when looking down at the engine. Are these different sensors or were they relocated on later models? Thanks!