need to know on a 2012 dodge caravan sxt v6 where are the o2 sensors located. Esp. upstream sensor 1 bank 1? Tried to look for them from above but no luck so far.
I believe on a V6 or V8 for that matter Bank 1 is usually the left hand side when facing the engine from the front of the vehicle. Locate the exhaust manifold and follow the exhaust pipes until you find the catalytic convertor. The upstream O2 sensor the sensor at the beginning of the cat. That tells the ECM your air fuel ratio. The downstream O2 sensor is that is on the end of the cat. It doesn't do a helluva of a lot until it detects O2 from the cat at that point the cat is finished and you get a check engine light.