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My ranger is an 03 3.0 v6, and it's been running a p1131 code for awhile. Today it started running rough and threw a few other system lean codes and misfire codes on 1, 2, and 3. When I checked my 02 sensor, it (and another sensor of some sort) melted. Do yall know what the other sensor is (the yellow one) and how to fix them?
