Been trying to diagnose P1301 Misfire level causing emissions increase along with P0300 P0301 P0302 misfire codes that return a few miles after erasing the codes. Just happened to look at the live data section in the scan tool and notice that short term fuel trim Bank 1 Sensor 2 is always at 99.2%. That can’t be right? And which is sensor 2? There is one before the cat, another one after the cat and a third one after the muffler.